Those who would attain the heights reached and
kept by great men must keep their faculties polished by constant use,
so that they may unlock the doors of knowledge,
the gate that guard the entrances to the professions,
to science, art, literature, agriculture---
every department of human endeavor.
There is no doubt that happiness is the most precious thing in the world.
Without it, life will be empty and meaningless.
If you wish to know how to get happiness,
you must pay attention to the following two points.
First, health is the secret of happiness/the key to happiness.
Only a strong man can enjoy the pleasure of life.
Secondly, happiness consists in contentment.
A man who is dissatisfied with his present condition is always in distress.
Once upon a time the colors of the world started to quarrel. 
All claimed that they were the best. The most important.
The most useful. The favorite.
Green said: "Clearly I am the most important.
I am the sign of life and of hope. I was chosen for grass,
trees and leaves. Without me, all animals would die.
Look over the countryside and you will see that I am in the majority."
Blue interrupted: "You only think about the earth,
but consider the sky and the sea.
It is the water that is the basis of life and drawn up
by the clouds from the deep sea.
Without my peace, you would all be nothing."  
Yellow chuckled:"You are all so serious.
I bring laughter, gaiety, and warmth into the world.
The sun is yellow, the moon is yellow, and the stars are yellow.
Every time you look at a sunflower, the whole world starts to s-mile.
Without me there would be no fun."  
Orange started next to blow her trumpet:
"I am the color of health and strength. I may be scarce,
but I am precious for I serve the needs of human life.
I carry the most important vitamins.
Think of carrots, pumpkins, oranges, mangoes, and papayas.
I don't hang around all the time,
but when I fill the sky at sunrise or sunset,
my beauty is so striking that no one gives another thought to any of you."  
Red could stand it no longer he shouted out:
"I am the ruler of all of you. I am blood-life's blood!
I am the color of danger and of bravery.