Kids, and even people, who are full of hate will never be able to grow emotionally and spiritually. Hate is a very powerful emotion that, like diseases, prohibit many from moving on and experiences other emotions.
L'enfant haineux ne grandit pas
This literally means that a baobab gets its strength from its roots. However, this connects to people, as people get their strength and tenacity from deep within. The internal motivations and drives of many help them to muster the strength to continue trying to achieve their goals.
La force du baobab est dans ses racines.
The mouse does not get on the lion's back. Essentially, your enemies cannot be trusted, so one must be aware of them and stay alert.