Even the best of friends need time apart.
Do not be awe struck by other people and try to copy them. Nobody can be you as efficiently as you can.
Famous remarks are very seldom quoted correctly.
If you believe the doctors, nothing is wholesome; if you believe the theologians, nothing is innocent; if you believe the military, nothing is safe.
Therefore search and see if there is not some place where you may invest your humanity.
I have never been especially impressed by the heroics of people who are convinced they are about to change the world. I am more awed by those who struggle to make one small difference after another.
To achieve great things we must live as though we were never going to die.