It is better to understand little than to misunderstand a lot.
The best sentence? The shortest.
An education which does not cultivate the will is an education that depraves the mind.
When a history book contains no lies it is always tedious.
Of all the sexual aberrations, chastity is the strangest.
Awaken people's curiosity. It is enough to open minds, do not overload them. Put there just a spark.