I used to measure the heavens, now I measure the shadows of Earth. Although my mind was heaven-bound, the shadow of my body lies here.
Epitaph he composed for himself a few months before he died, as quoted by Steven G. Krantz, Brian E. Blank, Calculusː Multivariable (2006) p. 126.
And after these things I saw four angels standing on the four corners of the earth, holding the four winds of the earth, that the wind should not blow on the earth, nor on the sea, nor on any tree.Revelation 7:1 KJV