The Alter of Slabodka spoke 40 years mainly about Gadlus HaAdam. His Yahrzeit is this coming Thursday (29 Shevat).
The Alter from Slabodka Zatzal suffered from a terrible rebelliousness in his Yeshiva, and he went through Gehinom. Yet, he never got angry, and always continued to love everybody, and see good even in the worst people. Savlanus, Savlanus, Savlanus.
He would periodically leave Slabodka (where he had lots of Kavod) and visit Kelm (where he wasn’t exactly appreciated, because of differences in Shita). He went through terrible Bizyonos in Kelm, and he said that this saved him from the danger of Kavod he was getting by being the beloved Rebbe of Slabodka Yeshiva. Kavod can destroy a Neshama, Chas V’shalom.
I once heard a story that the Alter Zatzal was given a new Beged. He made sure that many other people would wear it before he got to wear it.
People with pure Middos can see what others can’t see. The Alter would predict the futures of his Talmidim, and he was always right, despite many unexpected projections.
He once said about his son-in-law, R' Eizik Sher Zatzal, that his words were like a “Rishon”. And he once compared his daughter-in-law to Rochel, the wife of Rabbi Akiva. In Novardok, they also spoke with Breitkeit (grandeur).
Look at the fruits of a person who worked overtime on his Middos!! The illustrious Einiklach of the Alter of Slabodka, are the Roshei Yeshivos who ran the Mir Yeshiva, beginning with his son R' Leizer Yudel Zatzal, his son R' Beinush Zatzal, and R’ Aryeh Finkel Zatzal.