“The energy of the mind is the essence of life.”

Change in all things is sweet.

If one way be better than another, that you may be sure is natures way.

Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.

Happiness depends upon ourselves.

Well begun is half done.

Those that know, do. Those that understand, teach.