"I have been a solitary man, but I have found joy in my work."

"I have been a scientist, and I have sought to understand the mysteries of the universe."

"I was measuring the heavens, now I must measure the shadows of the Earth. Though my soul was from the heavens, the shadow of my body lies here."

"The world is a book, and those who do not travel read only one page."

"I have been a man of faith, and I have trusted in God's plan."