Bad middos are chometz. Or in our case - חמץ שעבר עליו הפסח.
Two new series: A fresh look at Messilas Yesharim and Iggros R' Yisrael Salanter.
What our generation lacks IMHO is a serious, systematic study of Mussar. That is why most people are more or less the same people today that they were five and ten and more years ago.