Quite Likely The Twentieth Century Is Destined

Construction Of An Aerial Vehicle Which Can Carry Even A Single Man . . . Requires The Discovery Of Some New Metal Or Force. Even With Such A Discovery, We Could Not Expect One To Do More Than Carry Its Owner.

One Of The Most Beautiful Hypotheses Ever Propounded In Physics Is ... The Dynamical Theory Of Gases

I Finally Reached The Conclusion That Mathematics Was The Study I Was Best Fitted To Follow, Though I Did Not Clearly See In What Way I Should Turn The Subject To Account.

One Hardly Knows Where, In The History Of Science, To Look For An Important Movement That Had Its Effective Start In So Pure And Simple An Accident As That Which Led To The Building Of The Great Washington Telescope, And Went On To The Discovery Of The Satellites Of Mars.

Aerial Flight Is One Of That Class Of Problems With Which Man Will Never Be Able To Cope. . . . The Example Of The Bird Does Not Prove That Man Can Fly. Imagine The Proud Possessor Of The Aeroplane Darting Through The Air At A Speed Of Several Hundred Feet Per Second. It Is The Speed Alone That Sustains Him. How Is He Ever Going To Stop?