How many discoveries are reserved for the ages to come when our memory shall be no more, for this world of ours contains matter for investigation for all generations.

The greater part of progress is the desire to progress.

You can tell the character of every man when you see how he receives praise.

The man who does something under orders is not unhappy; he is unhappy who does something against his will.

It is never too late to turn from the errors of our ways: He who repents of his sins is almost innocent.

True wisdom consists in not departing from nature and in molding our conduct according to her laws and model.

The whole duty of man is embraced in the two principles of abstinence and patience: temperance in prosperity, and patient courage in adversity.