Be kind whenever possible. It is always possible.
The dog that trots about finds a bone.
Be gentle to all and stern with yourself.
Expect problems and eat them for breakfast.
Who seeks shall find.
By failing to prepare, you are preparing to fail.
Begin to be now what you will be hereafter.
It's always too early to quit.
Go for it now. The future is promised to no one.
Without hard work, nothing grows but weeds.
Finish last in your league and they call you idiot. Finish last in medical school and they call you doctor.
You know what they call the fellow who finishes last in his medical school graduating class? They call him 'Doctor.'