An unwise advisor cannot hope to advise wisely.

To strive to better oneself is natural and expected.
To abandon oneself in an effort to attain a new self is foolish and unhealthy.

Listen to all advice given to you, but take only the best.

Praise not the day until evening has come, a woman until she is burnt, a sword until it is tried, a maiden until she is married, ice until it has been crossed, beer until it has been drunk.

A proverb is the wisdom of many and the wit of one.

An ounce of prevention is worth a pound of cure.