There was great uncertainty about how well we would be able to walk in our cumbersome pressurized suit. - Neil Armstrong

History is a sequence of random events and unpredictable choices, which is why the future is so difficult to foresee.

I can't hear it. But the 'a' is implied, so I'm happy if they just put it in parentheses. (1982)

I would hope that history would grant me leeway for dropping the syllable and understand that it was certainly intended, even if it was not said — although it might actually have been. (2008)

Shoot for the stars but if you happen to miss shoot for the moon instead.