“A sober man may become a drunkard through being a coward. A brave man may become a coward through being a drunkard.”
Source: Charles Dickens (1906), Ch. 8 "The Time of Transition"
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G. K. Chesterton 229
English mystery novelist and Christian apologist 1874–1936Related quotes

“(Alternate version.) A brave man will kill you with a sword, a coward with a kiss.”
Song lyrics, Slow Train Coming (1979), Gonna Change My Way of Thinking

“That man is not truly brave who is afraid either to seem or to be, when it suits him, a coward.”
Marginalia http://www.easylit.com/poe/comtext/prose/margin.shtml (November 1844)

“It is a more rational belief that man may become a brute than that a brute may become a man;”
The facts and fancies of Mr. Darwin (1862)
Context: It is a more rational belief that man may become a brute than that a brute may become a man; and it is an easier faith that plants and animals may dwindle down into an elemental atom, than that this atom should embrace in its organization, and evolve, all the noble forms of vegetable, animal, and intellectual life.

“Reasoning with a drunkard is like
Going under water with a torch to seek for a drowning man.”
Verse XCIII.9
Tirukkural

“Hatred is the coward's revenge for being intimidated.”