Never take anything for granted.

A good eater must be a good man; for a good eater must have a good digestion, and a good digestion depends upon a good conscience.

The delight of opening a new pursuit, or a new course of reading, imparts the vivacity and novelty of youth even to old age.

Governments do not govern, but merely control the machinery of government, being themselves controlled by the hidden hand.

What art was to the ancient world, Science is to the modern; the distinctive faculty. In the minds of men, the useful has succeeded to the beautiful.

Had it not been for you, I should have remained what I was when we first met, a prejudiced, narrow-minded being, with contracted sympathies and false knowledge, wasting my life on obsolete trifles, and utterly insensible to the privilege of living in this wondrous age of change and progress.

To supervise people, you must either surpass them in their accomplishments or despise them.