A man's reach should exceed his grasp, or what's a heaven for? The appetite grows with eating; the more one has, the more one wants.

We are dying from civilisation and its discontents; we have invented the machine, and now the machine is in the process of reinventing us.

The mind of man is capable of anything—because everything is in it, all the past, all the future, all the possibilities of existence.

We are dying from civilisation and its discontents. The machine has possessed us, and we must either master it or perish.

The mind of man is capable of anything—because everything is in it, all the past as well as all the future. What he has to do is to accept it or reject it, take it or leave it.

The pendulum of the mind oscillates between sense and nonsense, not between right and wrong. Every man is wise when attacked by a disease from which he is never likely to suffer.

We cannot live only for ourselves. A thousand fibers connect us with our fellow men; and among those fibers, as sympathetic threads, we feel every quiver that passes through them as a shock to our own nerves.

The mind is furnished with a set of instincts which seek out certain kinds of things, and reject others. It natively loves and hates, it seeks and shuns, and these operations are as primitive as any that the mind performs.

The true paradises are the paradises that we have lost.

The poets make all the words, and therefore language is the indelible record of mankind's being.

The best business decisions come from a place of genuine insight about human nature and incentives, not from financial models. Most people optimize for the wrong things because they haven't thought carefully about what they actually want.

The effort to understand the universe is one of the very few things that lifts human life a little above the level of farce, and gives it some of the grace of tragedy.

The mind of man is capable of anything—because everything is in it, all the past as well as all the future.