There is always a temptation to talk a lot and empty one’s mind of the many thoughts that run through it; but fewer words selected from a carefully carved out mind carry deep wisdom.
It is easy to gather stones from the surface; but skill and hard work is required to mine gold many meters below ground level.
Even when we look at the availability and the price of food, that which is easy to come by is relatively cheap, like rice and bread. Specialty food like caviar is expensive and not found everywhere.
Deep wisdom is not easily obtained, it is borne out of experiences and a mind that learns from them. Many of these experiences are painful, so not everyone is willing to obtain wisdom.
Wisdom is not always attractive either. To learn from others you have to sit still and close your mouth, often listening to people you may not rate highly on the social ladder. To learn from your experiences you have to sacrifice temporal pleasures for a future gain. You have to desire and believe in the need to obtain wisdom.
“Many words rush along like rivers in flood, but deep wisdom flows up from artesian springs.”
Proverbs 18:4 MSG
http://bible.com/97/pro.18.4.msg