The secret of reaping the greatest fruitfulness and the greatest enjoyment from life is to live dangerously.

There are no moral phenomena at all, but only a moral interpretation of phenomena.

Do whatever you will, but first be such as are able to will.

There will always be rocks in the road ahead of us. They will be stumbling blocks or stepping stones; it all depends on how you use them.

Science offends the modesty of all real women. It makes them feel as though it were an attempt to peek under their skin--or, worseyet, under their dress and ornamentation!

Most of the time in married life is taken up by talk.

Undeserved praise causes more pangs of conscience later than undeserved blame, but probably only for this reason, that our power of judgment are more completely exposed by being over praised than by being unjustly underestimated.