Quintilian
Nature herself has never attempted to effect great changes rapidly.
When we cannot hope to win, it is an advantage to yield.
When defeat is inevitable, it is wisest to yield.
It is much easier to try one's hand at many things than to concentrate one's powers on one thing.
Though ambition itself be a vice, yet it is often times the cause of virtues.
Nothing can be pleasing which is not also becoming.
That laughter costs too much which is purchased by the sacrifice of decency.
Our minds are like our stomachs; they are whetted by the change of their food, and variety supplies both with fresh appetites.
The perfection of art is to conceal art.