Records can be destroyed if they do not suit the prejudices of ruling cliques, lost if they become incomprehensible, distorted if a copyist wishes to impose a new meaning upon them, misunderstood if we lack the information to interpret them. The past is like a huge library, mostly fiction.

For most purposes, a man with a machine is better than a man without a machine.

If two people agree, one of them is unnecessary.

Enthusiasm is the sparkle in your eyes, the swing in your gait.

One needs to be successful in the conventional way to learn just how far away from success it may be.

You can do anything if you have enthusiasm. Enthusiasm is the yeast that makes your hopes rise to the stars. Enthusiasm is the spark in your eye, the swing in your gait, the grip of your hand, the irresistible surge of your will and your energy to execute your ideas. Enthusiasts are fighters, they have fortitude, they have strong qualities. Enthusiasm is at the bottom of all progress. With it there is accomplishment. Without it there are only alibis.

Whether we think we can or cannot, we are right.