No man was ever yet a great poet, without being at the same time a profound philosopher.

What if you slept? And what if, in your sleep, you went to heaven and there plucked a strange and beautiful flower? And what if,when you awoke,you had the flower in your hand? Ah, what then?

When a man mistakes his thoughts for persons and things, he is mad.

The wise only possess ideas; the greater part of mankind are possessed by them.

Ignorance seldom vaults into knowledge, but passes into it through an intermediate state of obscurity, even as night into day through twilight.

There is one art of which people should be masters - the art of reflection.

Enlist the interests of stern Morality and religious Enthusiasm in the cause of Political Liberty, as in the time of the old Puritans, and it will be irresistible.