You think your temper is the worst in the world, but mine used to be just like it. … I've been trying to cure it for forty years, and have only succeeded in controlling it. I am angry nearly every day of my life, but I have learned not to show it; and I still try to hope not to feel it, though it may take me another forty years to do it. … I've learned to check the hasty words that rise to my lips, and when I feel that they mean to break out against my will, I just go away for a minute, and give myself a little shake for being so weak and wicked.

Marmee March to Jo, in Ch. 8 : Jo Meets Apollyon - Little Women (1868)