Some folks as they grow older grow wise but most folks simply grow stubborner.
Experience increases our wisdom but doesn't reduce our follies.
A man cannot learn to be wise any more than he can learn to be handsome.
Method is the arithmetic of success.
Silence is said to be golden, but the best fools the world has ever produced had nothing to say on the subject
It's a wise man who profits by his own experience, but it's a good deal wiser one who lets the rattlesnake bite the other fellow.