Think before you speak, your words could hurt someone's feeling more than you intended it to.

It is better to allow our lives to speak for us than our words.

To use the same words is not a sufficient guarantee of understanding; one must use the same words for the same genus of inward experience; ultimately one must have one's experiences in common.

My dear Tiberius, you must not give way to youthful emotion or take it to heart if anyone speaks ill of me; let us be satisfied if we can make people stop short at unkind words.

Action is more generally understood than words.

Words are cheap. The biggest thing you can say is 'elephant'.