It is only through imagination that men become aware of what the world might be; without it, ‘progress’ would become mechanical and trivial.

To realize the unimportance of time is the gate to wisdom.

America... where law and custom alike are based upon the dreams of spinsters...

I am myself a dissenter from all known religions, and I hope that every kind of religious belief will die out.

Both in thought and in feeling, even though time be real, to realise the unimportance of time is the gate of wisdom.

The trouble with the world is that the stupid are cocksure and the intelligent are full of doubt.

Religions that teach brotherly love have been used as an excuse for persecution, and our profoundest scientific insight is made into a means of mass destruction.