Who said "Conscience and cowardice are really the same things."?

This quote is attributed to Lord Henry Wotton.

Conscience and cowardice are really the same things. - Lord Henry Wotton

"Conscience and cowardice are really the same things."

Lord Henry Wotton

Character in The Picture of Dorian Gray

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"The only way to get rid of a temptation is to yield to it."

"I can resist everything except temptation."

"The basis of optimism is sheer terror."

"To define is to limit."