The trouble with most people is that they quit before they start.

The best thinking has been done in solitude. The worst has been done in turmoil.

The man who doesn't make up his mind to cultivate the habit of thinking misses the greatest pleasure in life.

To do much clear thinking a person must arrange for regular periods of solitude when they can concentrate and indulge the imagination without distraction.

I have been influenced in my thinking by both west and east.

That's been one of my mantras - focus and simplicity. Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple. But it's worth it in the end because once you get there, you can move mountains.