We are impressed and even daunted by the immense Universe to be explored. "What we know is a point to what we do not know."

In old Egypt, it was established law, that the vote of a prophet be reckoned equal to a hundred hands. I think it was much under-estimated.

All things are moral. That soul, which within us is a sentiment, outside of us is a law. We feel its inspiration; out there in history we can see its fatal strength.

The value of a principle is the number of things it will explain.

Greatness is a property for which no man gets credit too soon; it must be possessed long before it is acknowledged.

Friendship requires more time than poor busy men can usually command.

All men plume themselves on the improvement of society, and no man improves.