Be kind whenever possible. It is always possible.
It's always too early to quit.
Do not weep do not wax indignant. Understand.
Who seeks shall find.
Begin to be now what you will be hereafter.
Leap, and the net will appear.
Be gentle to all and stern with yourself.
Always desire to learn something useful.
Know or listen to those who know.
Only the educated are free.
Nobody expects to trust his body overmuch after the age of fifty.
I never expect to see a perfect work from an imperfect man.