When teaching a student, do not enlighten him until he wishes to understand what he could not. Do not inspire him until he wishes to express but could not. When teaching him one side of a solution, if he could not discover the other three sides, then do not teach him again.

Source: Tatoeba

After I got all worked up about ordering in English, I walked in the store and they greeted me with "Irasshaimase!" I felt, like, "What the ...?"

Source: Tatoeba

Although he was born in England, he speaks English very badly.

Source: Tatoeba