[Newton wrote to Halley ... that he would not give Hooke any credit] That, alas, is vanity. You find it in so many scientists. You know, it has always hurt me to think that Galileo did not acknowledge the work of Kepler.

All of us who are concerned for peace and triumph of reason and justice must be keenly aware how small an influence reason and honest good will exert upon events in the political field.

Those who staying with the wrong reward,(eg. stay in comfort zone, etc.), long enough will get problem.

Combinatory play seems to be the essential feature in productive thought.

Politics is for the present, but an equation is for eternity.

I am also convinced that one gains the purest joy from spirited things only when they are not tied in with earning one's livelihood.

If someone feels that he has never made a mistake in his life, it only means that he has never tried anything new in his life.