The dog that trots about finds a bone.
You never know what motivates you.
Leap, and the net will appear.
What you do today can improve all your tomorrows.
Always desire to learn something useful.
Do not weep do not wax indignant. Understand.
Know or listen to those who know.
Things do not happen. Things are made to happen.
Only the educated are free.
The wise does at once what the fool does at last.
Because of my medical and ideological training, I am accustomed to saying that life is adaptation and symbiosis.