If It Doesn't Add Value, It's Waste.

There Are Three Things That Grow More Precious With Age; Old Wood To Burn, Old Books To Read, And Old Friends To Enjoy.

I Invented Nothing New, I Simply Assembled The Discoveries Of Other Men Behind Whom There Was Centuries Of Work.

There Is No Failure Except Failure To Serve One's Purpose.

Profit Is A By-product Of Work; Happiness Is Its Chief Product.

The Greatest Thing In Life Is To Keep Your Mind Young.