Write

The challenge of writing
Is to see your horribleness on page
To see your terribleness 
And then to go to bed
And wake up the next day
And take that horribleness and that terribleness 
And refine it
And make it not so terrible and not so horrible
And then to go to bed again
And come back the next day
And refine it a little bit more
And make it not so bad
And then to go to bed the next day
And do it again
And make it maybe average
And then one more time
If you're lucky
Maybe you get to good
And if you've done that
That's a success

Ta-Nehisi Coates

Try

It is not the critic who counts; not the man who points out how the strong man stumbles, or where the doer of deeds could have done them better. The credit belongs to the man who is actually in the arena, whose face is marred by dust and sweat and blood; who strives valiantly; who errs, who comes short again and again, because there is no effort without error and shortcoming; but who does actually strive to do the deeds; who knows great enthusiasms, the great devotions; who spends himself in a worthy cause; who at the best knows in the end the triumph of high achievement, and who at the worst, if he fails, at least fails while daring greatly, so that his place shall never be with those cold and timing souls who neither know victory nor defeat.

Teddy Roosevelt

Grit

"To do anything really well, you have to overextend yourself", to appreciate that, "in doing something over and over again, something that was never natural becomes almost second nature," and finally, that capacity to do work that diligently "doesn't come overnight."

Years of hard work are often mistaken for innate talent, and that passion is as necessary as perseverance to world-class excellence.

Angela Duckworth

Death

"Death anchors us in the truth. It's the signpost that takes away all illusions. Believe that you have control, and death will shatter your illusions. Associate too much with the physical world, and death will remind you that everything physical falls apart. Be proud of your knowledge, and the mystery of death will keep you puzzled. Try to slow down the decay of life, and death will crush your sense of time. When you accept the reality of death, there will be nothing left to fear. " 

Mo Gawdat, Solve for Happy