To sentence a man of true genius, to the drudgery of a school is to put a racehorse on a treadmill.

Oh Sleep! it is a gentle thing, beloved from pole to pole, to Mary Queen the praise be given! She sent the gentle sleep from Heaven, that slid into my soul.

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

The best part of human language, properly so called, is derived from reflection on the acts of the mind itself.

A single thought is that which it is from other thoughts as a wave of the sea takes its form and shape from the waves which precede and follow it.

Exclusively of the abstract sciences, the largest and worthiest portion of our knowledge consists of aphorisms: and the greatest and best of men is but an aphorism.

Conscience is the pulse of reason