To the wisest man, wide as is his vision. Nature remains of quite infinite depth, of quite infinite expansion and all experience thereof limits itself to some few computed centuries and measured square miles.

We have chosen Mahomet not as the most eminent Prophet; but as the one we are freest to speak of. He is by no means the truest of Prophets; but I do esteem him a true one.

Once the mind has been expanded by a big idea, it will never go back to its original state.

The old cathedrals are good, but the great blue dome that hangs over everything is better.

The grand result of schooling is a mind with just vision to discern, with free force to do: the grand schoolmaster is Practice.

I do not believe in the collective wisdom of individual ignorance.

These Arabs, the man Mahomet, and that one century, - is it not as if a spark had fallen, one spark, on a world of what proves explosive powder, blazes heaven-high from Delhi to Granada! I said, the Great man was always as lightning out of Heaven; the rest of men waited for him like fuel, and then they too would flame.