Do you sincerely declare that you love mankind in general, of what profession or religion soever? Do you think any person ought to be harmed in his body, name, or goods, for mere speculative opinions, or his external way of worship? Do you love truth for truth's sake; and will you endeavor impartially to find and receive it yourself, and communicate it to others.

Beauty and folly are old companions.

Anger warms the invention, but overheats the oven.

The rapid progress of the sciences makes me sorry, at times, that I was born so soon. Imagine the power that man will have over matter, a few hundred years from now. We may learn how to remove gravity from large masses, and float them over great distances. Agriculture will double its produce with less labor. All diseases will surely be cured... even old age. If only the moral sciences could be improved as well. Perhaps men would cease to be wolves to one another... and human beings could learn to be human.

Whoever shall introduce into public affairs the principles of primitive Christianity will change the face of the world.

It is better to let 100 criminals go free than to imprison 1 innocent man.

All cats look gray in the dark.