Short

I would have written you a shorter letter, 
but I did not have the time.

Quote by Blaise Pascal

Simplicity - Einstein

If you can't explain it to a six year old, 
you don't understand it yourself.


quote by Albert Einstein

Steve Jobs on Innovation

Steve Jobs gave a small private presentation about the iTunes Music Store to some independent record label people. 
People kept raising their hand saying, "Does it do [x]?", "Do you plan to add [y]?". 

Finally Jobs said:
"Wait wait — put your hands down. Listen: I know you have a thousand ideas for all the cool features iTunes could have. So do we. But we don't want a thousand features. That would be ugly. Innovation is not about saying yes to everything. It's about saying NO to all but the most crucial features.” 

Derek Sivers quoting Steve Jobs

Complexity

Making the simple complicated is commonplace;
making the complicated simple, awesomely simple,
that's creativity…

Quote by Charles Mingus

Simplicity

Simplicity of all things is the hardest to be copy.

quote by Sir Richard Steele

Simplicity in measurement

Simplicity applies to measurement also. Too often we measure everything and understand nothing.

quote by Jack Welch

Simplicity

Make things as simple as possible, but not simpler

quote by Einstein