Do not weep do not wax indignant. Understand.
After a storm comes a calm.
Know or listen to those who know.
Never complain and never explain.
You never know what motivates you.
Leap, and the net will appear.
Without hard work, nothing grows but weeds.
By failing to prepare, you are preparing to fail.
It's always too early to quit.
The most effective way to do it, is to do it.
In science there is only physics all the rest is stamp collecting.