The hours pass and the days and the months and the years, and the past time never returns.

Any man may make a mistake; none but a fool will stick to it. Second thoughts are best as the proverb says.

Philosophy is the true mother of science.

No phase of life, whether public or private, can be free from duty.

Old age, especially an honored old age, has so great authority, that this is of more value than all the pleasures of youth.

Neither can embellishments of language be found without arrangement and expression of thoughts, nor can thoughts be made to shine without the light of language.

Not to know what happened before you were born is to be a child forever. For what is the time of a man, except it be interwoven with that memory of ancient things of a superior age?