Be gentle to all and stern with yourself.
You never know what motivates you.
Without hard work, nothing grows but weeds.
If you've got a talent, protect it.
Who seeks shall find.
Quality is not an act, it is a habit.
Always desire to learn something useful.
The dog that trots about finds a bone.
By failing to prepare, you are preparing to fail.
Begin to be now what you will be hereafter.
The doubt of an earnest, thoughtful, patient and laborious mind is worthy of respect. In such doubt may be found indeed more faith than in half the creeds.