Science can never solve one problem without raising ten more problems.

Time enough to think of the future when you haven't any future to think of.

It is impossible for an Englishman to open his mouth without making some other Englishman hate or despise him.

Decency is indecency's conspiracy of silence

I have studied him - the wonderful man - and in my opinion far from being an anti-Christ he must be called the saviour of humanity.

New opinions often appear first as jokes and fancies, then as blasphemies and treason, then as questions open to discussion, and finally as established truths.

You cannot be a hero without being a coward.