Know or listen to those who know.
Well done is better than well said.
Never complain and never explain.
Only the educated are free.
By failing to prepare, you are preparing to fail.
Problems are not stop signs, they are guidelines.
The wise does at once what the fool does at last.
Quality is not an act, it is a habit.
If you're going through hell, keep going.
Be kind whenever possible. It is always possible.
I'd think learning to play the guitar would be very confusing for sighted people.