第43页 Russell's Protege

Russell noted with approval that Wittgenstein had excellent manners, but, even more approvingly, that: 'in argument he forgots about manners & simply says what he thinks';
No one could be more sincere than Wittgenstein, or more destitute of the false politeness the interferes with truth; but he lets his feelings and affections appear, and it warms one's heart.