The Agnostic's Prayer from the novel Creatures of Light and Darkness (1969)
Related quotes

Source: The 80/20 principle: the secret of achieving more with less (1999), p. 164

A self-deprecating joke about his age, quoted at American Experience http://www.pbs.org/wgbh/americanexperience/features/transcript/reagan-transcript/
1980s, Second term of office (1985–1989)
Source: Dictionary of Burning Words of Brilliant Writers (1895), P. 158.

1820s
Source: Speech to the House of Commons on Parliamentary reform, 25 April 1822

“Is it birthday weather for you, dear soul?
Is it fine your way”
Birthday Poem for Thomas Hardy (1949)

Song lyrics, Slow Train Coming (1979), When You Gonna Wake Up

Journal of Discourses 14:195 (June 3, 1871)
1870s