Any intelligent fool can make things bigger and more complex. It takes a touch of genius - and a lot of courage to move in the opposite direction.  
Albert Einstein

Life is like riding a bicycle. To keep your balance you must keep moving.
Albert Einstein
 
Intellectuals solve problems; geniuses prevent them.
 Albert Einstein
 
You cant control the wind, but you can adjust your sails.
Yiddish proverb

Imagination is more important than knowledge.
Sign hanging in Einsteins office at Princeton.

 We cant solve problems by using the same kind of thinking we used when we created them.  
 Albert Einstein