Atoms Are Mainly Empty Space. Matter Is

War Is Murder Writ Large.

A Celibate Clergy Is An Especially Good Idea, Because It Tends To Suppress Any Hereditary Propensity Toward Fanaticism.

The Near Side Of A Galaxy Is Tens Of Thousands Of Light-years Closer To Us Than The Far Side; Thus We See The Front As It Was Tens Of Thousands Of Years Before The Back. But Typical Events In Galactic Dynamics Occupy Tens Of Millions Of Years, So The Error In Thinking Of An Image Of A Galaxy As Frozen In One Moment Of Time Is Small.

Science Is Based On Experiment, On A Willingness To Challenge Old Dogma, On An Openness To See The Universe As It Really Is. Accordingly, Science Sometimes Requires Courage - At The Very Least The Courage To Question The Conventional Wisdom.

[n]o Scientist Likes To Be Criticized. ... But You Don't Reply To Critics: "wait A Minute, Wait A Minute; This Is A Really Good Idea. I'm Very Fond Of It. It's Done You No Harm. Please Don't Attack It." That's Not The Way It Goes. The Hard But Just Rule Is That If The Ideas Don't Work, You Must Throw Them Away. Don't Waste Any Neurons On What Doesn't Work. Devote Those Neurons To New Ideas That Better Explain The Data. Valid Criticism Is Doing You A Favor.