A genius is a man who has two great ideas.

Ask an impertinent question and you are on the way to the pertinent answer.

The progress of science is the discovery at each step of a new order which gives unity to what had seemed unlike.

Knowledge is an unending adventure at the edge of uncertainty.

The preoccupation with the choice of a mate both by male and female I regard as a continuing echo of the major selective force by which we have evolved.

No science is immune to the infection of politics and the corruption of power. ... The time has come to consider how we might bring about a separation, as complete as possible, between Science and Government in all countries. I call this the disestablishment of science, in the same sense in which the churches have been disestablished and have become independent of the state.

The child is not a prisoner of its inheritance; it holds its inheritance as a new creation which its future actions will unfold.