Explaining purpose with "wei... er..."

为⋯⋯，而⋯⋯(wèi...ér...) is a structure used to clearly express the purpose of an action.

Structure

Subj. + 为 + Goal + 而 + Efforts Made

Sometimes, 为 can be replaced with 为了, which is less formal.

To make the pattern negative, simply add 不 before 为:

Subj. + 不 + 为 + Goal + 而 + Efforts Made

很多中国父母为孩子而活。Hěnduō Zhōngguó fùmǔ wèi háizi ér huó.Many Chinese parents live for their children.
我们为梦想而奋斗。Wǒmen wèi mèngxiǎng ér fèndòu.We fight for our dreams.
为我们的健康而多做锻炼。Wèi wǒmen de jiànkāng ér duō zuò duànliàn.We exercise more for the sake of our health.
你是为钱而工作吗？Nǐ shì wèi qián ér gōngzuò ma?Do you work for money?
我是为朋友而做的这件事情。Wǒ shì wèi péngyou ér zuò de zhè jiàn shìqíng.I'm doing this for a friend.
他为了能去日本而苦学日语。Tā wèile néng qù Rìběn ér kǔxué Rìyǔ.He studied Japanese hard in order to be able to go to Japan.
李甜为了男朋友而学的医生。Lǐ Tián wèile nán péngyou ér xué de yīshēng.Li Tian studied to be a doctor for her boyfriend.
这不仅仅是为娱乐而修建的公园。Zhè bùjǐn jǐn shì wèi yúlè ér xiūjiàn de gōngyuán.This parks was not built solely for entertainment.
你不为父母而考虑，也要考虑考虑你自己。Nǐ bù wéi fùmǔ ér kǎolǜ, yě yào kǎolǜ kǎolǜ nǐ zìjǐ.You don't consider your parents, but consider yourself.
不为明天而努力，那你为了什么而努力？Bù wéi míngtiān ér nǔlì, nà nǐ wèile shénme ér nǔlì?If you aren't working hard for tomorrow then what are you working so hard for?