A liar should have a good memory.
One thing, however, I must premise, that without the assistance of natural capacity, rules and precepts are of no efficacy.
Nature herself has never attempted to effect great changes rapidly.
While we are making up our minds as to when we shall begin. the opportunity is lost.
In almost everything, experience is more valuable than precept.
Consequently the student who is devoid of talent will derive no more profit from this work than barren soil from a treatise on agriculture.