The spiritual life is part of the human essence. It is a defining characteristic of human nature, without which human nature is not fully human.

Be independent of the good opinion of other people.

One cannot choose wisely for a life unless he dares to listen to himself, his own self, at each moment of his life.

Become aware of internal, subjective, subverbal experiences, so that these experiences can be brought into the world of abstraction, of conversation, of naming, etc. with the consequence that it immediately becomes possible for a certain amount of control to be exerted over these hitherto unconscious and uncontrollable processes.

We must understand love; we must be able to teach it, to create it, to predict it, or else the world is lost to hostility and to suspicion.

In order for us to become truly happy, that which we can become, we must become.

The only happy people I know are the ones who are working well at something they consider important.