Few things are impossible to diligence and skill.

There is no problem the mind of man can set that the mind of man cannot solve.

Friendship is seldom lasting but between equals or where the superiority on one side is reduced by some equivalent advantage on the other.

Man is not weak - knowledge is more than equivalent to force. The master of mechanics laughs at strength.

It is unjust to claim the privileges of age and retain the playthings of childhood.

Treating your adversary with respect is striking soft in battle.