The man who discovers a new scientific truth has previously had to smash to atoms almost everything he had learnt, and arrives at the new truth with hands blood stained from the slaughter of a thousand platitudes.

We cannot put off living until we are ready.

Hatred is a feeling which leads to the extinction of values.

One age cannot be completely understood if all the others are not understood. The song of history can only be sung as a whole.

The struggle with the past is not a hand-to-hand fight. The future overcomes it by swallowing it. If it leaves anything outside it is lost.

The form most contradictory to human life that can appear among the human species is the "self-satisfied man."

Order is not pressure which is imposed on society from without, but an equilibrium which is set up from within.