Monkey See, Monkey Do.

Life like a tree full of monkeys.
All on different limbs at different levels.
Some monkeys are climbing up, some down.
The monkeys on top look down,
and see a tree full of smiling faces.
The monkeys on the bottom look up,
and see nothing but assholes.

A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnett, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently and die gallantly.
Specialization is for insects.

Maintain airspeed, lest the ground rise up and smite thee.

Eat right, exercise regularly, die anyway!

And Finally, on a personal note!

I believe in God;
I just don't trust anyone who works for him!