Fear of the future is worse than one's present fortune.
Forbidden pleasures alone are loved immoderately; when lawful, they do not excite desire.
Consequently the student who is devoid of talent will derive no more profit from this work than barren soil from a treatise on agriculture.
The pretended admission of a fault on our part creates an excellent impression.
We excuse our sloth under the pretext of difficulty.
While we ponder when to begin, it becomes too late to do.