Energy

An atom has tremendous energy think of the man.

Enjoyment

Enjoy the world in a disinterested way.

Enthusiasm

An easy task becomes difficult when you do it with reluctance.
Enthusiasm in our daily work lightens effort and turns labour into pleasant tasks.
Loss of enthusiasm is like a premature death. It is like accepting defeat without being defeated.

Error

The fellow who never makes a mistake takes his orders from the one who does.
The greatest error you can make in life is to be in fear of committing an error.
To error is human, to persist in error is devilish.