Don’t exchange what you want most for what you want for the moment.
Don’t base your decisions on the advice of those who don’t have to deal with the results.
A mind needs books as a sword needs a whetstone, if it is to keep its edge.
He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.
Live every day as if it were your last because one of these days you will be right.