Fear is the parent of cruelty.
Men are made by nature unequal. It is vain, therefore, to treat them as if they were equal.
Mistakes are often the best teachers.
Morality, when vigorously alive, sees farther than intellect, and provides unconsciously for intellectual difficulties.
To be happy is not the purpose for which you are placed in this world.
The first duty of an historian is to be on his guard against his own sympathies...