If you're capable of sending a legible text message between sets, you probably aren't working hard enough.

Dave Tate

Concentration can be cultivated. One can learn to exercise willpower, discipline one's body and train one's mind.

Anil Ambani

How to be unhappy: stay inside all day, move as little as possible, spend more than you earn, take yourself (and life) too seriously, look for reasons why things won't work, always consume, never contribute, resent the lucky and successful, never say hello first, be unreliable.

James Clear

The golden rule of habit change: You can't extinguish a bad habit, you can only change it.

Charles Duhigg

Unless it's an emergency, don't bother me after 6:00 p.m. and on weekends.

Merv Griffin

Leave all the afternoon for exercise and recreation, which are as necessary as reading. I will rather say more necessary because health is worth more than learning.

Thomas Jefferson