Concepts which have proved useful for ordering things easily assume so great an authority over us, that we forget their terrestrial origin and accept them as unalterable facts. They then become labeled as 'conceptual necessities,' etc. The road of scientific progress is frequently blocked for long periods by such errors.
A knowledge of the existence of something we cannot penetrate, of the manifestations of the profoundest reason and the most radiant beauty - it is this knowledge and this emotion that constitute the truly religious attitude; in this sense, and in this alone, I am a deeply religious man.
Artists and creative workers - people who have accomplished work worthwhile have had a very high sense of the way to do things. They haven't been contented with mediocrity. They haven't confined themselves to the beaten tracks; they have never been satisfied to do things just as others do them, but always a little better. Few are those who see with their own eyesand feel with their own hearts.
Most people go on living their everyday life: half-frightened, half indifferent, they behold the ghostly tragic-comedy that is being performed on the international stage before the eyes and ears of the world.
I believe that the first step in the setting of a real external world is the formation of the concept of bodily objects and of bodily objects of various kinds.
In one's youth every person and every event appear to be unique. With age one becomes much more aware that similar events recur. Later on, one is less often delighted or surprised, but also less disappointed than in earlier years.
We must begin to inculcate our children against militarism by educating them in the spirit of pacifism. Our schoolbooks glorify war and conceal it's horror. I would teach peace rather than war.