I have no special talent. I am only passionately curious. The important thing is to not stop questioning. Curiousity has its own reason for existing.

The longing to behold this pre-established harmony [of phenomena and theoretical principles] is the source of the inexhaustible patience and perseverance with which Planck has devoted himself ... The state of mind which enables a man to do work of this kind is akin to that of the religious worshiper or the lover; the daily effort comes from no deliberate intention or program, but straight from the heart.

Try not to become a man of success, but a man of value. Look around at how people want to get more out of life than they put in. A man of value will give more than he receives. Be creative, but make sure that what you create is not a curse for mankind.

Creativity is intelligence having fun.

The most important decision we make is whether we believe we live in a friendly or hostile universe.

The rest of my life (as a 39 year old) I want to reflect on what life is.

It is also a natural thing for a serious young man that he should form for himself as precise an idea as possible of the goal of his desires.