Effectiveness is doing the things that get you closer to your goals. Efficiency is performing a given task (whether important or not) in the most economical manner possible. Being efficient without regard to effectiveness is the default mode of the universe.

Being called a huckster and a charlatan started several years ago, so that's something I'm accustomed to. In most cases, it doesn't bother me.

Be bold and don't worry about what people think. They don't do it that often anyway.

If we define risk as 'the likelihood of an irreversible negative outcome,' inaction is the greatest risk of all.

Slow down and remember this: Most things make no difference. Being busy is a form of mental laziness-lazy thinking and indiscriminate action.

After decades of hauling telescopes around in the back of vans and going up to high altitude locations and so forth, I did finally build an observatory, here on Sonoma mountain.

Poisonous people do not deserve your time. To think otherwise is masochistic.