Old age is a good and pleasant thing. It is true you are gently shouldered off the stage, but then you are given such a comfortable front stall as spectator.
The superior man examines his heart, that there may be nothing wrong there, and that he may have no cause for dissatisfaction with himself. That wherein the superior man cannot be equaled is simply this – his work which other men cannot see.
There are three methods to gaining wisdom. The first is reflection, which is the highest. The second is limitation, which is the easiest. The third is experience, which is the bitterest.