Conscious man, to be sure, has at all times been keenly aware that life is an adventure, that life must, forever, be wrested from death.

We have penetrated far less deeply into the regularities obtaining within the realm of living things, but deeply enough nevertheless to sense at least the rule of fixed necessity... what is still lacking here is a grasp of the connections of profound generality, but not a knowledge of order itself.

Don't wait for miracles, your whole life is a miracle.

Everybody acts not only under external compulsion but also in accordance with inner necessity.

It takes a touch of genius - and a lot of courage to move in the opposite direction.

You cannot solve current problems with current thinking. Current problems are the result of current thinking.

Don't do anything that goes against your conscience, even if your country says so.