Sending his son out into the world, a father gave him the following rules, without which he said he could not hope to get on:

Tell the Truth – falsehoods are hard to remember.
Shine the heels of your shoes as well as the toes.
Don’t lend money to your friends – you will lose both.
Don’t watch the clock; it will keep on going – you do the same.
You do not need clean cuffs every day, but you need a clean conscience all the time.

Handling Criticism: if it’s untrue, disregard it; if it’s unfair, keep from irritation; if it’s ignorant, smile; if it’s justified, learn from it.