FocusPositives

想 xiǎng, to think / to believe / to suppose / to wish / to want / to miss
得到 dé dào, to get / to obtain / to receive
先 xiān, early / prior / former / in advance / first
要 yāo, demand / ask / request / coerce / must
付出 fù chū, pay / pay out

想得到,先要付出 if you want to receive, you must give first (pay in advance)

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知彼知己，百戰不殆；不知彼而知己，一勝一負；不知彼，不知己，每戰必殆

It is said that if you know your enemies and know yourself, you will not be imperiled in a hundred battles; if you do not know your enemies but do know yourself, you will win one and lose one; if you do not know your enemies nor yourself, you will be imperiled in every single battle.

~ Art of War, Ch. 3, the last sentence, by Sun Tzu