“The difference between one man and another is not mere ability ... it is energy.”

“The difference between one man and another is not mere ability ... it is energy.”

“One's age should be tranquil, as childhood should be playful. Hard work at either extremity of life seems out of place. At midday the sun may burn, and men labor under it; but the morning and evening should be alike calm and cheerful.”

“The difference between one man and another is not mere ability ... it is energy.”

“The difference between one man and another is not mere ability . . . it is energy.”