“everyone endeavors as much as possible to make others love what he loves, and to hate what he hates... This effort to make everyone approve what we love or hate is in truth ambition, and so we see that each person by nature desires that other persons should live according to his way of thinking...”

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

“I have striven not to laugh at human actions, not to weep at them, nor to hate them, but to understand 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.”

“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.”

“The endeavor to understand is the first and only basis of virtue.”

“I should attempt to treat human vice and folly geometrically... the passions of hatred, anger, envy, and so on, considered in themselves, follow from the necessity and efficacy of nature... I shall, therefore, treat the nature and strength of the emotion in exactly the same manner, as though I were concerned with lines, planes, and solids.”