There's Plenty Of Room At The Bottom.

The Truth Always Turns Out To Be Simpler Than You Thought.

Everybody Who Reasons Carefully About Anything Is Making A Contribution ... And If You Abstract It Away And Send It To The Department Of Mathematics They Put It In Books.

'conservation' (the Conservation Law) Means This ... That There Is A Number, Which You Can Calculate, At One Moment-and As Nature Undergoes Its Multitude Of Changes, This Number Doesn't Change. That Is, If You Calculate Again, This Quantity, It'll Be The Same As It Was Before. An Example Is The Conservation Of Energy: There's A Quantity That You Can Calculate According To A Certain Rule, And It Comes Out The Same Answer After, No Matter What Happens, Happens.

There Are 10^11 Stars In The Galaxy. That Used To Be A Huge Number. But It's Only A Hundred Billion. It's Less Than The National Deficit! We Used To Call Them Astronomical Numbers. Now We Should Call Them Economical Numbers.

Scientific Knowledge Is An Enabling Power To Do Either Good Or Bad — But It Does Not Carry Instructions On How To Use It.