He who knows others is clever;
He who knows himself has discernment.
He who overcomes others has force;
He who overcomes himself is strong.
He who knows contentment is rich;
He who perseveres is a man of purpose;
He who does not lose his station will endure;
He who lives out his days has had a long life.
A quick wit can judge another and a prize fighter can knock another out.
And you can retire, rich and content, holding yourself above the others – but then you are no longer living. Your life will have no longevity – nor will it have breadth, nor depth.
Instead, think about the strength to carry weights with good posture. Persevere in the long task. Train endurance, and do not hold yourself above the others.
You know yourself by way of observation; you overcome yourself by way of pliability. Such is your practise: there is no knock-out punch.