Ah, good conversation - there's nothing like it, is there? The air of ideas is the only air worth breathing.

The value of books is proportionate to what may be called their plasticity -- their quality of being all things to all men, of being diversely moulded by the impact of fresh forms of thought.

Women ought to be free - as free as we are,' he declared, making a discovery of which he was too irritated to measure the terrific consequences.

Habit is necessary. It is the habit of having habits, of turning a trail into a rut, that must be incessantly fought against if one is to remain alive ... one can remain alive long past the usual date of disintegration if one is unafraid of change, insatiable in intellectual curiosity, interested in the big things, and happy in small ways.

In any really good subject, one has only to probe deep enough to come to tears.

Overhead hung a summer sky furrowed with the rush of rockets; and from the east a late moon, pushing up beyond the lofty bend of the coast, sent across the bay a shaft of brightness which paled to ashes in the red glitter of the illuminated boats.

[B]ut he had lived in a world in which, as he said, no one who loved ideas need hunger mentally.