The art of war teaches us to rely not on the likelihood of the enemy's not coming, but on our own readiness to receive him; not on the chance of his not attacking, but rather on the fact that we have made our position unassailable.
Seek out people who aren't afraid of making mistakes and who, therefore, do make mistakes. Because of that, their work often isn't recognized, but they are precisely the kind of people who change the world and, after many mistakes, do something that will transform their own community completely.
For it has come about, by the wise economy of nature, that our modern spirit can almost dispense with language; the commonest expressions do, since no expressions do; hence the most ordinary conversation is often the most poetic, and the most poetic is precisely that which cannot be written down.
Your time is limited, so don't waste it living someone else's life. Don't be trapped by dogma - which is living with the results of other people's thinking. Don't let the noise of others' opinions drown out your own inner voice. And most important, have the courage to follow your heart and intuition.
How, in such an alien and inhuman world, can so powerless a creature as man preserve his aspirations untarnished? A strange mystery it is that nature, omnipotent but blind, in the revolutions of her secular hurryings through the abysses of space, has brought forth at last a child, subject still to her power, but gifted with sight, with knowledge of good and evil, with the capacity of judging all the works of his unthinking mother. In spite of death, the mark and seal of the parental control, man is yet free, during his brief years, to examine, to criticize, to know, and in imagination to create. To him alone, in the world with which he is aquainted, this freedom belongs; and in this lies his superiority to the resistless forces that control his outward life.
We would be a lot safer if the Government would take its money out of science and put it into astrology and the reading of palms. Only in superstition is there hope. If you want to become a friend of civilization, then become an enemy of the truth and a fanatic for harmless balderdash.
If a man is offered a fact which goes against his instincts, he will scrutinize it closely, and unless the evidence is overwhelming, he will refuse to believe it. If, on the other hand, he is offered something which affords a reason for acting in accordance to his instincts, he will accept it even on the slightest evidence.