One has to do something new in order to see something new.

There can hardly be a stranger commodity in the world than books. Printed by people who don't understand them; sold by people who don't understand them; bound, criticized and read by people who don't understand them; and now even written by people who don't understand them.

I believe that man is in the last resort so free a being that his right to be what he believes himself to be cannot be contested.

There is a great difference between believing in something and believing in it again.

The greater part of human misery is caused by indolence.

It not seldom happens that in the purposeless rovings and wanderings of the imagination we hunt down such game as can be put to use by our purposeful philosophy in its well-ordered household.

I made the journey to knowledge like dogs who go for walks with their masters, a hundred times forward and backward over the same territory; and when I arrived I was tired.