It is not necessary to fall into a well to know its depth. Soon ripe, soon rotten. Ambition plagues the inarticulate hardest. The longest list has a final item. Man who slings mud, loses ground.
College is a fountain of knowledge where students come to drink.
Don't wear ear muffs in a land of rattlesnakes. The man who invented the eraser had the human race pretty well sized up. Or needs to. If you can afford a hotel, you need not sleep in a tent. When you camp on a cold day, you will be faced with colder night.