Two wealthy residents of Brisk came to Rabbi Chayim Soloveitchik with a sum of money enclosed in a sealed envelope.  Rabbi Soloveitchik had officiated at their children’s wedding a few days before and this was their token of appreciation.  A few minutes later, a poor man came into Rav Chayim’s house to ask for a donation.  Rav Chayim took the sealed envelope the wealthy man had given him and handed it over to the poor man.” ~ Ishim Veshitos as quoted by R’ Zellig Pliskin