Warren Buffett

Abe's Glog
Welcome to America

If you're lucky you'll get to live long enough that your lens' grows cloudy. It doesn't matter how sharp your base vision is before this gradual formation. Even if you were seeing 20/8 (the accepted max visual acuity for humans) the world will still appear obscured to you through cataracts...
Optimize V Simplify
Warren Buffett
 is also a big proponent of this. Basically I think anyone who has been successful for a 'long time' figures out that it's best to just have a few big north-stars a year and just allow that to guide all the little optimizations isntead of trying to sweat over each optimization as its own individual decision.
Abraham Kim