Impatience has a poor track record for perfection. Getting things right usually includes calming down!
We are what we repeatedly do but we can be perceived by what we repeatedly say.
Satisfaction may be the goal of the common man, but it is the enemy of greatness.
Knowledge is not power; Implementation is power
When the customer is wrong it is not a good idea to tell them.
If you criticize others' ideas, they will almost never use yours no matter how good they are.