The proper method for hastening the decay of error, is not, by brute force, or by regulation which is one of the classes of force, to endeavour to reduce men to intellectual uniformity; but on the contrary by teaching every man to think for himself.

Justice is the sum of all moral duty.

Revolutions are the produce of passion, not of sober and tranquil reason.

He that revels in a well-chosen library, has innumerable dishes, and all of admirable flavour.

Learning is the ally, not the adversary of genius... he who reads in a proper spirit, can scarcely read too much.

It is probable that there is no one thing that it is of eminent importance for a child to learn.

He has no right to his life when his duty calls him to resign it. Other men are bound ... to deprive him of life or liberty, if that should appear in any case to be indispensably necessary to prevent a greater evil.