I have been in my bed for five weeks, oppressed with weakness and other infirmities from which my age, seventy four years, permits me not to hope release. Added to this ( proh dolor! ) the sight of my right eye - that eye whose labors (dare I say it) have had such glorious results - is for ever lost. That of the left, which was and is imperfect, is rendered null by continual weeping. July 4, 1637. The private life of Galileo, p.278

...if I shall have sufficient strength to improve and amplify what was written and published by me up to now about motion by adding some little speculations, a…

Alas! Your dear friend and servant Galileo has been for the last month hopelessly blind; so that this heaven, this earth, this universe, which I by my marvelou…

It now remains that we find the amount of time of descent through the channel. This we shall obtain from the marvelous property of the pendulum, which is that …

As you can see, I'm in good health. I have no message; just tell them, please, that I went to my death quietly and in good health.

Well, my greatest reward, I think, is that I've been able to build this wonderful organization. I've been able to enjoy good health, and the way I feel today, …

Hold the period of youth sacred to education, and the period of maturity, when the physical forces begin to flag, equally sacred to ease and agreeable relaxati…