Every decent man of our age must be a coward and a slave. That is his normal condition. Of that I am firmly persuaded. He is made and constructed to that very end. And not only at the present time owing to some casual circumstance, but always, at all times, a decent man is bound to be a coward and a slave.

For the secret of man's being is not only to live but to have something to live for. Without a stable conception of the object of life, man would not consent to go on living, and would rather destroy himself than remain on earth, though he had bread in abundance.

Everything will come in due course, if you have the gumption to wait for it.

In a way there's only a fine shade of difference between the healthy and the deranged.

To strive consciously for an object and to engage in engineering -- that is, incessantly and eternally to make new roads, wherever they may lead.

There is something at the bottom of every new human thought, every thought of genius, or even every earnest thought that springs up in any brain, which can never be communicated to others, even if one were to write volumes about it and were explaining one's idea for thirty-five years; there's something left which cannot be induced to emerge from your brain, and remains with you forever; and with it you will die, without communicating to anyone perhaps the most important of your ideas.

It is precisely that requirement of shared worship that has been the principal source of suffering for individual man and the human race since the beginning of history. In their efforts to impose universal worship, men have unsheathed their swords and killed one another. They have invented gods and challenged each other: "Discard your gods and worship mine or I will destroy both your gods and you!"