The pursuit of happiness is a most ridiculous phrase: if you pursue happiness you'll never find it.

The scientific process has two motives: one is to understand the natural world, the other is to control it.

For the first time I saw a medley of haphazard facts fall into line and order. All the jumbles and recipes and hotchpotch of the inorganic chemistry of my boyhood seemed to fit into the scheme before my eyes-as though one were standing beside a jungle and it suddenly transformed itself into a Dutch garden.

What we need to do is to humanize the scientist and simonize the humanist.

Nine English traditions out of ten date from the latter half of the nineteenth century.

When you think of the long and gloomy history of man, you will find more hideous crimes have been committed in the name of obedience than have ever been committed in the name of rebellion.

It takes a very strong head to keep secrets for years and not go slightly mad. It isn't wise to be advised by anyone slightly mad.