One picture is worth a thousand words

The years of searching in the dark for a truth that one feels but cannot express, the intense desire and the alternations of confidence and misgiving until one breaks through to clarity and understanding, are known only to him who has experienced them himself.

The history of scientific and technical discovery teaches us that the human race is poor in independent and creative imagination.

Scientific research is based on the idea that everything that takes place is determined by laws of Nature, and therefore this holds for the action of people. For this reason, a research scientist will hardly be inclined to believe that events could be influenced by a prayer, i.e. by a wish addressed to a Supernatural Being.

Life is a preparation for the future; and the best preparation for the future is to live as if there were none.

I want to go when I want. It is tasteless to prolong life artificially. I have done my share, it is time to go. I will do it elegantly.

A theory can be proved by experiment; but no path leads from experiment to the birth of a theory.