The Difficult is that which can be done immediately; the Impossible that which takes a little longer.

Does the thoughtful man suppose that...the present experiment in civilization is the last world we will see?

People are usually more firmly convinced that their opinions are precious than that they are true.

Knowledge of what is possible is the beginning of happiness.

The working of great institutions is mainly the result of a vast mass of routine, petty malice, self interest, carelessness and sheer mistake. Only a residual fraction is thought.

It is possible to be a master in false philosophy, easier, in fact, than to be a master in the truth, because a false philosophy can be made as simple and consistent as one pleases.

The same battle in the clouds will be known to the deaf only as lightning and to the blind only as thunder.