“I count him braver who overcomes his desires than him who conquers his enemies; for the hardest victory is the victory over self.” — Aristotle

“If knowledge can create problems, it is not through ignorance that we can solve them.” — Isaac Asimov

“Learning is finding out what you already know. Doing is demonstrating that you know it. Teaching is reminding others that they know just as well as you.” — Richard Bach

“Your friends will know you better in the first minute you meet than your acquaintances will know you in a thousand years.” — Richard Bach

“Grow old along with me, the best is yet to be.” — Robert Browning

“That in our day such pygmies throw such giant shadows only shows how late in the day it has become.” — Erwin Chargaff

“幸福不是在有爱人，是在兩人都无更大的欲望， 商商量量平平和和的过日子。” — 丁玲

“I am enough of an artist to draw freely upon my imagination. Imagination is more important than knowledge. Knowledge is limited. Imagination encircles the world.” — Albert Einstein

“If we knew what it was we were doing, it would not be called research, would it?” — Albert Einstein

“Only a life lived for others is a life worth living.” — Albert Einstein

“Do not be too timid and squeamish about your actions. All life is an experiment. The more experiments you make the better. What if they are a little coarse, and you may get your coat soiled or torn? What if you do fail, and get fairly rolled in the dirt once or twice. Up again, you shall never be so afraid of a tumble.” — Ralph Waldo Emerson

“Do not go where the path may lead, go instead where there is no path and leave a trail.” — Ralph Waldo Emerson

“For a successful technology, reality must take precedence over public relations, for Nature cannot be fooled.” — Richard Feynman

“I was born not knowing, and have only had a little time to change that here and there.” — Richard Feynman

“You can know the name of a bird in all the languages of the world, but when you’re finished, you’ll know absolutely nothing whatever about the bird … So let’s look at the bird and see what it’s doing — that’s what counts. I learned very early the difference between knowing the name of something and knowing something.” — Richard Feynman

“The biggest difference between time and space is that you can’t reuse time.” — Merrick Furst

“An eye for an eye makes the whole world blind.” — Mahatma K. Ghandi

“Strength does not come from physical capacity. It comes from an indomitable will.” — Mahatma K. Ghandi

“Strength of numbers is the delight of the timid. The valiant in spirit glory in fighting alone.” — Mahatma K. Ghandi

“A mathematician, like a painter or a poet, is a maker of patterns. If his patterns are more permanent than theirs, it is because they are made with ideas.” — Godfrey H. Hardy

“Archimedes will be remembered when Aeschylus is forgotten, because languages die and mathematical ideas do not. ‘Immortality’ may be a silly word, but probably a mathematician has the best chance of whatever it may mean.” — Godfrey H. Hardy

Reductio ad absurdum, which Euclid loved so much, is one of a mathematician’s finest weapons. It is a far finer gambit than any chess gambit: a chess player may offer the sacrifice of a pawn or even a piece, but a mathematician offers the game.” — Godfrey H. Hardy

“The mathematician’s patterns, like the painter’s or the poet’s, must be beautiful; the ideas, like the colours or the words, must fit together in a harmonious way. Beauty is the first test: there is no permanent place in the world for ugly mathematics.” — Godfrey H. Hardy

“Forgive your enemies, but never forget their names.” — John F. Kennedy

“It is better to remain silent, and be thought a fool, than to speak and thus remove all doubt.” — Abraham Lincoln

“You probably wouldn’t worry about what people think of you if you could know how seldom they do.” — Olin Miller

“To be absolutely certain about something, one must know everything or nothing about it.” — Olin Miller

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary, whilst the great ocean of truth lay all undiscovered before me.” — Isaac Newton

“I cherish both faces of mathematics: the pure as a beautiful retreat from reality, the applied as an ardent hope for life.” — Thomas L. Saaty

“If you want to make an apple pie from scratch, you must first create the universe.” — Carl Sagan

“Our sweetest songs are those that tell of saddest thought.” — Percy Bysshe Shelley

“Life is not a matter of holding good cards, but of playing a poor hand well.” — Robert Louis Stevenson

“Understanding comes from humility, not from the pride of knowledge.” — Susanna Tamaro

“Go confidently in the direction of your dreams. Live the life you have imagined.” — Henry David Thoreau

“I went to the woods because I wished to live deliberately, to front only the essential facts of life, and see if I could not learn what it had to teach, and not, when I came to die, discover that I had not lived. I did not wish to live what was not life, living is so dear; nor did I wish to practise resignation, unless it was quite necessary. I wanted to live deep and suck out all the marrow of life, to live so sturdily and Spartan-like as to put to rout all that was not life, to cut a broad swath and shave close, to drive life into a corner, and reduce it to its lowest terms, and, if it proved to be mean, why then to get the whole and genuine meanness of it, and publish its meanness to the world; or if it were sublime, to know it by experience, and be able to give a true account of it in my next excursion.” — Henry David Thoreau

“If a man does not keep pace with his companions, perhaps it is because he hears a different drummer. Let him step to the music which he hears, however measured or far away.” — Henry David Thoreau

“If you have built castles in the air, your work need not be lost; that is where they should be. Now put the foundations under them.” — Henry David Thoreau

“The mass of men lead lives of quiet desperation.” — Henry David Thoreau

“… nothing so liberalizes a man and expands the kindly instincts that nature put in him as travel and contact with many kind of people.” — Mark Twain

“Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one’s lifetime.” — Mark Twain

“My work has always tried to unite the true with the beautiful and when I had to choose one or the other, I usually chose the beautiful.” — Hermann Weyl

“Some cause happiness wherever they go; others, whenever they go.” — Oscar Wilde

“You cannot expect a soldier to be a proud soldier if you humiliate him. You cannot expect him to be brave if you abuse and cow him. You cannot expect him to be strong if you break him. You cannot ask for respect and obedience and willingness to assault hot landing zones, hump back-breaking ridges, destroy dug-in emplacements if your soldier has not been treated with respect and dignity which fosters unit esprit and personal pride. The line between firmness and harshness, between strong leadership and bullying, between discipline and chicken shit is a fine line. It is difficult to define, but those of us who are professionals, who have also accepted a career as a leader of men, must find that line. It is because judgement and concern for people and human relations are involved in leadership that only men can lead, and not computers. I enjoin you to be ever alert to the pitfalls of too much authority. Beware that you do not fall into the category of the little man, with a little job, with a big head. In essence, be considerate, treat your subordinates right, and they will literally die for you.” — General Melvin Zais

“Let us worry about beauty first, and truth will take care of itself.” — Anthony Zee