It's always too early to quit.
Do not weep do not wax indignant. Understand.
What you do today can improve all your tomorrows.
Who seeks shall find.
Quality is not an act, it is a habit.
Either you run the day or the day runs you.
Begin to be now what you will be hereafter.
To be a good loser is to learn how to win.
Problems are not stop signs, they are guidelines.
After a storm comes a calm.
I'd think learning to play the guitar would be very confusing for sighted people.