Only morality in our actions can give beauty and dignity to life.

All conditions and all circumstances in our lives are a result of a certain level of thinking. If we want to change the conditions and circumstances, we have to change the level of thinking that is responsible for it.

I know quite certainly that I myself have no special talent; curiosity, obsession and dogged endurance, combined with self-criticism, have brought me to my ideas.

The more I learn of physics, the more I am drawn to metaphysics.

But could not our situation be compared to one of a menacing epidemic? People are unable to view this situation in its true light, for their eyes are blinded by passion. General fear and anxiety create hatred and aggressiveness. The adaptation to warlike aims and activities has corrupted the mentality of man; as a result, intelligent, objective and humane thinking has hardly any effect and is even suspected and persecuted as unpatriotic.

Politics is a pendulum whose swings between anarchy and tyranny are fueled by perennially rejuvenated illusions.

The content of scientific theory itself offers no moral foundation for the personal conduct of life.