The mind has greater power over the emotions, and is less subject thereto, insofar as it understands all things to be necessary.

the ultimate aim of government is not to rule, or restrain by fear, nor to exact obedience, but to free every man from fear that he may live in all possible security... In fact the true aim of government is liberty.

To understand something is to be delivered of it.

In proportion as we endeavor to live according to the guidance of reason, shall we strive as much as possible to depend less on hope, to liberate ourselves from fear, to rule fortune, and to direct our actions by the sure counsels of reason.

In practical life we are compelled to follow what is most probable ; in speculative thought we are compelled to follow truth.

The virtue of a free man appears equally great in refusing to face difficulties as in overcoming them.

Of all the things that are beyond my power, I value nothing more highly than to be allowed the honor of entering into bonds of friendship with people who sincerely love truth. For, of things beyond our power, I believe there is nothing in the world which we can love with tranquility except such men.