"The child who has learned only what is taught him by others, will never be truly learned."

"The more I see of men, the more I admire dogs."

"My greatest fault has been to be too easily led, and my greatest virtue to have always recognized and avoided the errors into which I was led."

"The most dangerous method of doing evil is to do good under false pretenses."

"To be truly free, we must obey only those laws we have prescribed for ourselves."