He who does not understand your silence will probably not understand your words. Elbert Hubbard
The beginning of knowledge is the discovery of something we do not understand. Frank Herbert
Since the mathematicians have invaded the theory of relativity, I do not understand it myself anymore. Albert Einstein
We admire what we do not understand. Hindi Proverb
Perhaps you do not understand me because you do not love me. West African Proverb
Who does not understand a look, cannot understand long explanations. Arabic Proverb