Quote #11131
The inspirational value of the space program is probably of far greater importance to...
Quote #19684
If a man empties his purse into his head, no man can take it...
Quote #19782
To have doubted one’s own first principles is the mark of a civilized man.
Quote #28394
Better not take a dog on the space shuttle, because if he sticks his...
Quote #33914
The highest happiness of man … is to have probed what is knowable and...
Quote #14414
No man will make a great leader who wants to do it all himself,...
Quote #34356
Vigorous let us be in attaining our ends, and mild in our method of...
Quote #10843
The thing to remember is that that the future comes one day at a...
Quote #23375
Honest disagreement is often a good sign of progress.
Quote #19651
The whole history of the progress of human liberty shows that all concessions yet...