The hammerite prayers and proverbs in Thief are overall good, but these two are personal favorites:
Each year of thy life is the foundation for the next. The man who squanders his youth must build his life on a foundation of mud, and then wilt it collapse.
When I was cold, Thou taught of hearth and roof-beam. When I was hungry, Thou taught of pot and cauldron. When I was beset by foes, Thou taught of spear and shield. Thy hammer pounds the nail, holds the roof-beam. Thy hammer strikes the iron, shapes the cauldron. Thy hammer in my hand, unto my foes.
Some more Hammerite wisdom:
"And The Builder said, 'If the foundation is weak, do you wail and gnash your teeth? Do you ask it to repour itself? Nay, you tear it down and begin anew. So shall it be with all My Children, whether they be Stone or Flesh."
"The soul of a single virtuous man hath the worth of ten evil men, for canst not the virtuous man both slay the wicked and preserve his own?"
"Hammer, anvil, forge and fire, chase away The Hoofed Liar. Roof and doorway, block and beam, chase The Trickster from our dreams."
"
Hammerite Compendium of Precepts, Regimens and Rules of Conduct, Vol. 36
Time once past, the harlot did say to the priest "Tarry a while, and
wait upon thy duties" and the priest did tarry."
And then was the
harlot scourged with birch branches, and was the priest crushed
beneath the great gears, for the path of righteousness leads ever
upwards, to where it is perilous to fall.