A vigorous temper is not altogether an evil. Men who are easy as an old shoe are generally of little worth. Charles H Spurgeon
A person’s fate is their own temper. Benjamin Disraeli
You are educated when you have the ability to listen to almost anything without losing your temper or self-confidence. Robert Frost
He is happy whose circumstances suit his temper; but he is more excellent who can suit his temper to any circumstances. David Hume
We must interpret a bad temper as a sign of inferiority. Alfred Adler
The growth of wisdom may be gauged exactly by the diminution of ill temper. Friedrich Nietzsche