rewa 成语

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shareware

computer programs that people share Shareware will help us to save money. We'll share software.

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Virtue is its own reward.

You should not expect praise for acting in a correct or moral way.

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forewarned is forearmed

forewarned is forearmed
Knowledge in advance enables one to be prepared, as in Let me know when he's in town so I can take the phone off the hook—forewarned is forearmed. This expression originated as a Latin proverb, Praemonitus, praemunitus, which was translated into English by the early 1500s. It soon was put to broader use than its original military applications.