1. Wisdom is a good purchase though we pay dear for it.
2. Doubt is the key of knowledge.
3. If you want knowledge, you must toil for it.
4. A little knowledge is a dangerous thing.
5. A handful of common sense is worth a bushel of learning.
6. Wisdom is more to be envied than riches.
7. Wisdom is better than gold or silver.
8. Wisdom in the mind is better than money in the hand.
9. Knowledge advances by steps and not by leaps.
10. Learn wisdom by the follies of others.
11. It is good to learn at another man’s cost.
12. Experience is the best teacher.
13. Experience is the father of wisdom and memory the mother.
14. Dexterity comes by experience.
15. Practice makes perfect.