While I Am Describing To You How

'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.

I Learned Very Early The Difference Between Knowing The Name Of Something And Knowing Something.

If We Want To Solve A Problem That We Have Never Solved Before, We Must Leave The Door To The Unknown Ajar.

Whenever You See A Sweeping Statement That A Tremendous Amount Can Come From A Very Small Number Of Assumptions, You Always Find That It Is False. There Are Usually A Large Number Of Implied Assumptions That Are Far From Obvious If You Think About Them Sufficiently Carefully.

It Is Our Responsibility To Leave The People Of The Future A Free Hand.