Securities, certitudes and peace do not lead to discoveries.

I have gradually learned to be cautious even in disbelief

I could not say I believe. I know! I have had the experience of being gripped by something that is stronger than myself, something that people call God.

The doctor is effective only when he himself is affected. Only the wounded physician heals.

The greatest tragedy of the family is the unlived lives of the parents.

It is proverbial, of course, that man never learns from history, and, as a rule, in respect to a problem of the present, it can teach us simply nothing. The new must be made through untrodden regions, without suppositions, and often, unfortunately, without piety also.

The greatest potential for growth and self-realisation exists in the second half of life.