Anything You Don't Understand Is Dangerous Until

I'd Visit The Near Future, Close Enough That Someone Might Want To Talk To Larry Niven And Can Figure Out The Language; Distant Enough To Get Me Decent Medical Techniques And A Ticket To The Moon.

Ethics Change With Technology.

We Should Not Have Assumed That A Political Space Station Could Be Built.

I Never Got Good At Predicting What Millions Of People Will Suddenly Decide Is Rational.

One Mark Of A Good Officer, He Remembered, Was The Ability To Make Quick Decisions. If They Happen To Be Right, So Much The Better.