The hardest problems of pure and applied science can only be solved by the open collaboration of the world-wide scientific community.

Life is to be lived through action not by dreaming.

My father was on the faculty in the Chemistry Department of Harvard University; my mother had one year of graduate work in physics before her marriage.

Scientists under all forms of government must be able to participate fully in international efforts.

When I entered graduate school I had carried out the instructions given to me by my father and had knocked on both Murray Gell-Mann's and Feynman's doors and asked them what they were currently doing. Murray wrote down the partition function for the three-dimensional Ising model and said it would be nice if I could solve it (at least that is how I remember the conversation). Feynman's answer was 'nothing'.

One other hobby of mine has been playing the oboe but I have not kept this up after 1969.

The hardest problems of pure and applied science can only be solved by the open collaboration of the world-wide scientific community.