Human Nature is the only science of man; and yet has been hitherto the most neglected.

What a peculiar privilege has this little agitation of the brain which we call 'thought'.

A man acquainted with history may, in some respect, be said to have lived from the beginning of the world, and to have been making continual additions to his stock of knowledge in every century.

It is a certain rule that wit and passion are entirely incompatible. When the affections are moved, there is no place for the imagination.

The greater part of mankind may be divided into two classes; that of shallow thinkers who fall short of the truth; and that of abstruse thinkers who go beyond it.

If refined sense, and exalted sense, be not so useful as common sense, their rarity, their novelty, and the nobleness of their objects, make some compensation, and render them the admiration of mankind.

Any person seasoned with a just sense of the imperfections of natural reason, will fly to revealed truth with the greatest avidity.