Revolution is engendered by an indignation with tyranny, yet is itself pregnant with tyranny.... An attempt to scrutinize men's thoughts and punish their opinions is of all kinds of despotism the most odious: yet this is peculiarly character of a period of revolution.... There is no period more at war with the existence of liberty.

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.

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.

No maxim can be more pernicious than that which would teach us to consult the temper of the times, and to tell only so much as we imagine our contemporaries will be able to bear.

The philosophy of the wisest man that ever existed, is mainly derived from the act of introspection.

I shall attempt to prove two things: first, that the actions and dispositions of mankind are the offspring of circumstances and events, and not of any original determination that they bring into the world; and, secondly, that the great stream of our voluntary actions essentially depends, not upon the direct and immediate impulses of sense, but upon the decisions of the understanding.

He that loves reading has everything within his reach.