baka to testo shoukanjuu

It is important to accept your defeat as a defeat. If a person doesn’t know the frustration caused by a defeat, he neither knows how to get up when he falls, nor can he move further ahead. So mope around as much as you like. but when you’re done moping, start walking again towards your future.
—  Baka and Test: Summon the Beasts- Akira Yoshii