On a farm the best fertilizer is the master's eye.
Chance is a second master.
Example is the softest and least invidious way of commanding.
The brain is the citadel of sense perception.
Let that which is wanting in income be supplied by economy.
As in our lives so also in our studies, it is most becoming and most wise, so to temper gravity with cheerfulness, that the former may not imbue our minds with melancholy, nor the latter degenerate into licentiousness.