Indecision and delays are the parents of failure.

But of all plagues, good Heaven, thy wrath can send, Save me, oh, save me, from the candid friend!

When our perils are past, shall our gratitude sleep?

Whene'er with haggard eyes I view This dungeon that I'm rotting in, I think of those companions true Who studied with me at the U- Niversity of Gottingen.

Here's to the pilot that weathered the storm.

A steady patriot of the world alone, The friend of every country but his own.

I can prove anything by statistics except the truth.

There is nothing I know of so sublime as a fact.

Away with the cant of 'Measures not men!'-the idle supposition that it is the harness and not the horses that draw the chariot along.

In matters of commerce the fault of the Dutch Is offering too little and asking too much. The French are with equal advantage content, So we clap on Dutch bottoms just twenty per cent.

I called the New World into existence, to redress the balance of the Old.

I awoke one morning to find myself famous.

Curiosity is a terrible thing, he was thinking. How is it possible to stop oneself from needing to know?

Space architectures capable of supporting a permanent human presence on Mars are extraordinarily complex, with many different interdependent systems.

My first biography written in '73 was not 'Journey To The Moon.' It was 'Return To Earth.' Because for me, that was the more difficult task - disappointment.

Being blinded by young love. I remember the feeling, when I first fell in love - you don't see the world the same way that other people see it. You don't see the same boundaries.

Like the man says, there's no problems, only solutions.

Speculation is not knowledge.

I feel like in a way I'm starting over, with everything.

What may we expect of people who work all day and dance all night? After a while they will be thrown on society nervous, exhausted imbeciles.

We have a deficit of wonder right now.