After the daybreak, when it becomes dawn

I walk everyday in my beautiful lawn  

Birds sing song, charming wind blows 

Living creature feel fresh, joyous river flows 

I feel nature’s music which always buzzes in the sky 

As for her lovely child, mother sings lullaby 

I become very happy and full of joy 

When I feel I am nature’s boy 

Work hard all over day, and sleep deeply in the night 

Always live in nature’s lap this is the real joy of the life 

12=12

–12 = –12

9–21 =16–28

3² – (3 X 7) = 4² – (4 X 7)

3² – (3 X 7/2 X 2) + (7/2) ² = 4² – (4 X 7/2 X 2) ² + (7/2) ²

(3-7/2) ² = (4-7/2) ²

3-7/2 = 4-7/2

3=4

(Proved)