You can cheat anyone but not your own heart.

你可以欺瞒任何人，但骗不了自己的心。

youdao

You can cheat all at a time, can cheat some persons forever, but can't cheat all forever.

你能一时欺骗所有人，能永远欺骗一些人，却不能永远欺骗所有人。

youdao

It's really a cheat, but you can use ready-made pastry if you want.

这东西真是骗人，但如果你愿意的话，可以用现成的油酥面团。

《牛津词典》

"I am not a lobbyist with all kinds of money to stuff in your pocket, so that you can cheat the citizens of this country.

VOA: standard.2009.08.11

You can cheat but you'll be shamed in front of your neighbor.

在你同桌面前你就不好意思不写了吧

耶鲁公开课 - 博弈论课程节选

So, academic honesty: very simply, you can't cheat in 3.091. Is that shocking?

学术诚信，非常简单，这门课你不能作弊，很吃惊吗？

麻省理工公开课 - 固态化学导论课程节选

Pork butt doesn't take kindly to blasts of high heat, so don't think you can cheat by turning up the heat and reducing the cooking time.

WSJ: Mom-and-Pop Pulled Pork

You can also cheat and use Google services for sharing and keep your Apple services unique.

FORBES: Apple's iCloud Driving Your Family Crazy? Here's How To Restore Synching Sanity

Below are the key words or phrases that I always try to learn in the local language before travelling (or you can carry a cheat sheet with you, like the one I used in Paris).

BBC: Nine must-learn local phrases