The online journal American Scientist says Toddlers manage to acquire language even when their parents dont talk to them directly deaf children will go so far as to invent their own sign languages if they are not exposed to sign at home
देवाने मानवांना “आकाशातील पक्ष्यांहून अधिक ज्ञान ” दिले आहे, असे ईयोब ३५: ११ मध्ये म्हटले आहे.