Dans la vie, il faut être bon, mais il ne faut pas l'être deux fois, car, si tu es bon deux fois, tu deviendras bonbon et on te mangera.
I love it! First, I'm so happy I translated it in my head (feels like an achievement!) without any help, and it made me smile.
And for those wondering what the translation is, here it is (please correct me if I'm wrong): In life, it is necessary to be good (bon), but not necessary to be it twice, because if you are good (bon) twice, you become candy (bonbon) and one/we will eat you.
Merci beaucoup, Le_tra-jeudi! :-)