Gravitation cannot be held responsible for people falling in love. How on earth can you explain in terms of chemistry and physics so important a biological phenomenon as first love? Put your hand on a stove for a minute and it seems like an hour. Sit with that special girl for an hour and it seems like a minute. That's relativity.

The aim (of education) must be the training of independently acting and thinking individuals who, however, see in the service to the community their highest life problem.

The solitude and peace of mind are serving me quite well, not the least of which is due to the excellent and truly enjoyable relationship with my cousin; its stability will be guaranteed by the avoidance of marriage.

Science is the attempt to make the chaotic diversity of our sense-experience correspond to a logically uniform system of thought.

Despite my being an old gypsy there is a tendency to respectability inherent in old age.

One can't teach a cat not to catch birds

Peace cannot be kept by force; it can only be achieved by understanding.