No man can see his own prejudices.

All that I say is, examine, inquire. Look into the nature of things. Search out the grounds of your opinions, the for and against. Know why you believe, understand what you believe, and possess a reason for the faith that is in you.

Do not confound noise with fame. The man who is remembered, is not always honored.

There is but one honest limit to the rights of a sentient being; it is where they touch the rights of another sentient being.

We have ... dreamed so much and observed so little, that our imaginations have grown larger than the world we live in, and our judgments have dwindled down to a point.

The knowledge of one generation is the ignorance of the next.

... your spiritual teachers caution you against enquiry--tell you not to read certain books; not to listen to certain people; to beware of profane learning; to submit your reason, and to receive their doctrines for truths. Such advice renders them suspicious counsellors.