That which prematurely arrives at perfection soon perishes.
Conscience is a thousand witnesses.
In almost everything, experience is more valuable than precept.
When defeat is inevitable, it is wisest to yield.
It is the nurse that the child first hears, and her words that he will first attempt to imitate.
Consequently the student who is devoid of talent will derive no more profit from this work than barren soil from a treatise on agriculture.