No one demands more caution than a spy, and when someone has the skeleton key to minds, counter him by leaving the key of caution inside, on the other side of the keyhole.

Success rarely brings satisfaction.

There is no beauty unaided, no excellence that does not sink to the barbarous, unless saved by art.

Hope is a great falsifier. Let good judgment keep her in check.

Many would be wise if they did not think themselves wise.

Attempt easy tasks as if they were difficult, and difficult as if they were easy; in the one case that confidence may not fall asleep, in the other that it may not be dismayed.

A man of honour should never forget what he is because he sees what others are.