Either you run the day or the day runs you.
The dog that trots about finds a bone.
Only the educated are free.
If you think you can do it, you can.
Be kind whenever possible. It is always possible.
By failing to prepare, you are preparing to fail.
You never know what motivates you.
The wise does at once what the fool does at last.
Be gentle to all and stern with yourself.
Quality is not an act, it is a habit.
The role of the teacher is to create the conditions for invention rather than provide ready-made knowledge.