When the number of factors coming into play in a phenomenological complex is too large scientific method in most cases fails. One need only think of the weather, in which case the prediction even for a few days ahead is impossible.

The scientist is activated by a wonder and awe before the mysterious comprehensibility of the universe which is yet finally beyond his grasp. In its profoundest depths it is inaccessible to man.

The world will not be destroyed by those who do evil, but by those who watch them without doing anything.

It is just as important to make knowledge live and keep it alive as to solve specific problems.

Example isn't another way to teach, it is the only way to teach.

The most practical solution is a good theory.

The next world war will be fought with stones.