It seems to be the special peculiarity of human beings that they reflect: they think about thinking and know that they know. This, like other feedback systems, may lead to vicious circles and confusions if improperly managed, but self-awareness makes human experience resonant. It imparts that simultaneous "echo" to all that we think and feel as the box of a violin reverberates with the sound of the strings. It gives depth and volume to what would otherwise be shallow and flat.

More and more we try to effect an adaptation to life by means of external gadgets, and attempt to solve our problems by conscious thinking rather than unconscious 'know-how'. This is much less to our advantage than we like to suppose.

The greater the scientist, the more he is impressed with his ignorance of reality, and the more he realizes that his laws and labels, descriptions and definitions, are the products of his own thought. They help him to use the world for purposes of his own devising rather than understand and explain it.

If happiness always depends on something expected in the future, we are chasing a will-o'-the-wisp that ever eludes our grasp, until the future, and ourselves, vanish into the abyss of death.

If you belong to an in-group of good, or saved, or elite people, you can only know that you’re in because someone else is out. You cannot live on the right side of the tracks without there being a wrong side of the tracks, so you ought to be grateful to the outside for having the privilege of being on the inside.

We are at the moment looking at space as something to be entered by the tremendous thrust of a rocket because that is the attitude of attacking the unknown. And that causes us not to realize that we are already on the most magnificently equipped spaceship, which could hardly be improved upon. It has got a source of temperature and energy just at the right distance from it. It's beautifully equipped with oxygen, with food supplies, with all kinds of delightful things to do while on the journey.... and it's traveling through space at a colossal speed... and it's called the planet Earth.

For me, being literate and articulate is a form of judo, of overcoming the [system] by its own method.