Wisdom

Businesswoman

No earnings without expenses

German philosopher

 No victor believes in chance

Strategist, thinker

The more ingenious your plan, the fewer people will agree with it

Folk wisdom

Greed leads to poverty

Writer

He who looks back often can easily stumble over and fall down

Satirist

Usually you want everything at once, but you get nothing and gradually

Law of the field (Murphy)

You can’t fall from the floor

IBM principle

Machines should work; people should think

Musician, poet

One day the world will bend under us

Aphorism 

Never attribute to malice that which can be adequately explained by stupidity