We still do not know one thousandth of one percent of what nature has revealed to us.

I want to know God's thoughts.

I once thought that if I could ask God one question, I would ask how the universe began, because once I knew that, all the rest is simply equations. But as I got older I became less concerned with how the universe began. Rather, I would want to know why he started the universe. For once I knew that answer, then I would know the purpose of my own life.

Development of Western science is based on two great achievements: the invention of the formal logical system (in Euclidean geometry) by the Greek philosophers, and the discovery of the possibility to find out causal relationships by systematic experiment (during the Renaissance). In my opinion, one has not to be astonished that the Chinese sages have not made these steps. The astonishing thing is that these discoveries were made at all.

The only justifiable purpose of political institutions is to ensure the unhindered development of the individual.

It is my fate to be considered an authority, since I spent my youth rebelling against it.

Whether or not you can observe a thing depends upon the theory you use. It is the theory which decides what can be observed.