All science has one aim, namely, to find a theory of nature.

Beauty is an outward gift, which is seldom despised, except by those to whom it has been refused.

The day is always his, who works in it with serenity and great aims.

If a man carefully examine his thoughts he will be surprised to find how much he lives in the future. His well-being is always ahead. Such a creature is probably immortal.

A Gothic cathedral affirms that it was done by us and not done by us.

The peace of the man who has forsworn the use of the bullet seems to me not quite peace, but a canting impotence.

You cannot institute, without peril of charlatanism.