Insanity: doing the same thing over and over again and expecting different results.

— Albert Einstein

Simplicity is the ultimate sophistication.

— Leonardo da Vinci

Spectacular achievement is always preceded by spectacular preparation.

— Robert H. Schuller

Measurement is the first step that leads to control and eventually to improvement. If you can’t measure something, you can’t understand it. If you can’t understand it, you can’t control it. If you can’t control it, you can’t improve it.

— Dr. H. James Harrington

Everything should be made as simple as possible, but no simpler.

— Albert Einstein

The most damaging phrase in the language is: “We’ve always done it this way.”

— Rear Admiral Grace Hopper

Simple things should be simple, complex things should be possible.

— Alan Kay