Our speech has its weaknesses and its defects, like all the rest. Most of the occasions for the troubles of the world are grammatical.

Take care that old age does not wrinkle your spirit even more than your face.

The worth of the mind consisteth not in going high, but in marching orderly.

There is nothing which so poisons princes as flattery, nor anything whereby wicked men more easily obtain credit and favor with them.

The only thing certain is nothing is certain.

Courtesy is a science of the highest importance. It is...opening a door that we may derive instruction from the example of others, and at the same time enabling us to benefit them by our example, if there be anything in our character worthy of imitation.

Cowardice is the mother of cruelty.