There are no such men today. We have created a mechanism that makes it practically impossible for a real genius to appear. In my own field the biochemist Fritz Lipmann or the much maligned Linus Pauling were very talented people. But generally, geniuses everywhere seem to have died out by 1914. Today, most are mediocrities blown up by the winds of the time.

Science is wonderfully equipped to answer the question 'How?' but it gets terribly confused when you ask the question 'Why?'

Scientific fashions last longer than women's fashions but not as long as men's

When the so-called think tanks began to replace the thought processes of human beings, I called them the aseptic tanks.

You can stop splitting the atom; you can stop visiting the moon; you can stop using aerosols; you may even decide not to kill entire populations by the use of a few bombs. But you cannot recall a new form of life.

One of the most insidious and nefarious properties of scientific models is their tendency to take over, and sometimes supplant, reality.

If you can modify a cell, it's only a short step to modifying a mouse, and if you can modify a mouse, it's only a step to modifying a higher animal, even man.