This once again confirms that the most important information in your life won't come from a teacher, the library or the Internet, but from a mentor and on a very personal level.
Wisdom...

My long-passed grandfather's birthday is coming up, and for me it is a time to reminisce. The long walks we used to take. The long drives. The special trips he would make to pick me up so I could spend weekends with him... and the advice he used to give!

Much was wasted because I was young when he died. If he were alive today and sharing his gems of wisdom, I'd be a better man. Those gems were well and good, but the one I remember most, the jewel in the crown of grandfatherly advice, came when he paused, looked me in the eye and said...

"Son, Don't marry a woman with big hands. It makes your dick look smaller."