If you're going through hell, keep going.
Know or listen to those who know.
It's always too early to quit.
Quality is not an act, it is a habit.
Do not weep do not wax indignant. Understand.
After a storm comes a calm.
Only the educated are free.
Begin to be now what you will be hereafter.
Be thine own palace, or the world's thy jail.
The secret of getting ahead is getting started.
Science is a self-sufficient activity.
The thing about science is that it's an accurate picture of the world.