“Beware of the man whose god is in the skies.”
#83
1900s, Maxims for Revolutionists (1903)
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George Bernard Shaw 413
Irish playwright 1856–1950Related quotes

“It's light work for the gods who rule the skies
to exalt a mortal man or bring him low.”
XVI. 211–212 (tr. Robert Fagles).
Odyssey (c. 725 BC)

“Beware the man of a single book.”
Hominem unius libri timeo. / Timeo hominem unius libri.
As quoted by Leonard Sweet, The Greatest Story Never Told http://books.google.gr/books?id=KuTRcjWL91AC&dq=, section: "The Gift of Lyrics", Abingdon Press, 2012
Variant: "Beware the man of one book."
See also: Homo unius libri
Disputed
Variant: I fear the man of a single book.

“Beware the fury of a patient man.”
Pt. I, line 999–1005. Compare Publius Syrus, Maxim 289, "Furor fit læsa sæpius patientia" ("An over-taxed patience gives way to fierce anger").
Absalom and Achitophel (1681)
Variant: Beware the Fury of a Patient Man.
Context: Oh that my Pow'r to Saving were confin’d:
Why am I forc’d, like Heav’n, against my mind,
To make Examples of another Kind?
Must I at length the Sword of Justice draw?
Oh curst Effects of necessary Law!
How ill my Fear they by my Mercy scan,
Beware the Fury of a Patient Man.
“Beware of the man who won't be bothered with details.”
As quoted in Good Advice (1993), edited by William Safire and Leonard Safir, p. 215

Daedalus or Science and the Future (1923)

“Beware when the great God lets loose a thinker on this planet.”
1840s, Essays: First Series (1841), Circles