In defeat, we learn more about ourselves and the people around us

There are some defeats more triumphant than victories.

If you know yourself but not the enemy, for every victory gained you will also suffer a defeat.

Moreover, there is a victory and defeat—the first and best of victories, the lowest and worst of defeats—which each man gains or sustains at the hands, not of another, but of himself; this shows that there is a war against ourselves going on within every one of us.

Not in the clamor of the crowded street,
Not in the shouts and plaudits of the throng,
But in ourselves, are triumph and defeat.

Somewhere in the world there is a defeat for everyone. Some are destroyed by defeat, and some made small and mean by victory. Greatness lives in one who triumphs equally over defeat and victory.

We have had our failures, but so have others, even if they do not admit them. And they may be less public.

We must each of us bear our own misfortunes.

Nothing is more usual than to feel that others have shared in our failures, just as it is an ordinary reaction to forget those who have shared in our achievements.

Our successes and failures in love are unique to us alone. And in the end, that’s because our partners are as one-of-a-kind as we are.

Our struggles determine our successes.

Learn from each one of your defeats; your losses must be as close to you as your victories.

Translation: That which our greatness caused
May also cause our fall.

If you live long enough, you'll see that every victory turns into a defeat.