Where evil habits are once settled, they are more easily broken than mended.

Forbidden pleasures alone are loved immoderately; when lawful, they do not excite desire.

The soul languishing in obscurity contracts a kind of rust, or abandons itself to the chimera of presumption; for it is natural for it to acquire something, even when separated from any one.

It is worth while too to warn the teacher that undue severity in correcting faults is liable at times to discourage a boy's mind from effort.

Consequently the student who is devoid of talent will derive no more profit from this work than barren soil from a treatise on agriculture.

Suffering itself does less afflict the senses than the apprehension of suffering.

Let us never adopt the maxim, Rather lose our friend than our jest.