“A person's success in life can usually be measured by the number of uncomfortable conversations he or she is willing to have.” -Tim Ferriss, from the 4HWW. Interestingly, I find this much more useful for motivating me with interpersonal relationships than necessarily professional ones.
"Normal is getting dressed in clothes that you bought for work, driving through traffic in a car that you are still paying for, in order to get to the job that you need so you can pay for the clothes, car, and the house you leave empty all day in order to afford to live in it" -Ellen Goodman