You have power over your mind - not outside events. Realize this, and you will find strength.
Never eat more than you can lift.
You must learn to be still in the midst of activity, and to be vibrantly alive in repose.
When the fight begins within himself, a man's worth something.
To put a tempting face aside when duty demands every faculty is a lesson which takes most men longest to learn.
Lack of discipline leads to frustration and self-loathing.
You must have discipline to have fun.
Self-command is the main elegance.
A little kingdom I possess, Where thoughts and feelings dwell; And very hard the task I find Of governing it well.
Everybody's business is nobody's business, and nobody's business is my business.
I listen and give input only if somebody asks.
The man who masters his own soul will forever be called conqueror of conquerors.
Temptations come, as a general rule, when they are sought.
A mind which really lays hold of a subject is not easily detached from it.
There is little that can withstand a man who can conquer himself.
Too often in ironing out trouble someone gets scorched.
When you borrow trouble you give your peace of mind as security.
Don't be curious of matters that don't concern you; never speak of them, and don't ask about them.
I will write of him who fights and vanquishes his sins, who struggles on through weary years against himself ... and wins.
What we do upon some great occasion will probably depend on what we already are; and what we are will be the result of previous years of self-discipline.