Notwithstanding my youth [note: about 20 years old] the ecclesiastical functions aroused in me more fear than joy, for I knew, and I remain convinced, that I must give account for the sheep that should perish through my negligence.
-- Ulrich Zwingli, quoted in John T. McNeil, The History and Character of Calvinism

"As you do not know the way the spirit comes to the bones in the womb of a woman with child, so you do not know the work of God who makes everything." (Ecclesiastes 11:5, ESV)

Why was man created on Friday: So that, if he become overbearing, one can say to him, The gnat was created before you.
-- Tractate Sanhedrin 38a quoted in Montefiore and Lowe, A Rabbinic Anthology