The selfish gene theory is not a theory about selfishness in the everyday sense. It is a theory about the evolution of behavior.
The best way to predict the future is to create it.
The pursuit of knowledge for its own sake, an almost fanatical love of justice, and the desire for personal independence—these are the features of the Jewish tradition which make me thank my stars that I belong to it.
If you want to make a difference, you have to be willing to take risks.
Life is too short to be anything but happy.