305 Quotes by Arthur Koestler

It is impossible to decide whether a particular detail of the Pythagorean universe was the work of the master, or filled in by a pupil a remark which equally applies to Leonardo or Michelangelo . But there can be no doubt that the basic features were conceived by a single mind; that Pythagoras of Samos was both the founder of a new religious philosophy, and the founder of Science, as the word is understood today.

Space-ships and time machines are no escape from the human condition.

The moment of truth, the sudden emergence of a new insight, is an act of intuition.

The jester is brother to the sage.

Aggressiveness is not the main trouble with the human species, but rather an excess capacity for fanatical devotion.

...the cosmology of a given age is not the result of unilinear, "scientific" development, but rather the most striking, imaginative symbol of its mentality- the projection of its conflicts, prejudice and specific ways of double-think onto the graceful sky.

Death tripped down the corridor, changing step, struck out here and there, danced pirouettes; often I felt his breath on my face when he was miles away; often I fell asleep and dreamed while he stood leaning over my bed.

Most of us were not afraid of death, only of the act of dying; and there were times when we overcame even this fear. At such moments we were free-men without shadows, dismissed from the ranks of the mortal; it was the most complete experience of freedom that can be granted a man.

The discoveries of yesterday are the truisms of tomorrow, because we can add to our knowledge but cannot subtract from it.