The face is the index of mind
You can't tell a book by its cover.
A friend to everybody is a friend to nobody.
Books and friends should be few but good.
Be silent and your words will be worth more than silence.
He who hesitates is lost

Look before you leap - Aesop
Nobody can become perfect by merely ceasing to act - Bhagavad Gita
Let not thy left hand know what thy right hand doeth - The Bible
If God be for us, who can be against us ? - The Bible
Open not thine heart to everyone - The Bible
For the love of money is the root of all evil - The Bible