1-The Chazon Ish advised Men Seeking to marry to stay away From Stubborn women. (Maran Harav Sternbuch,shlita in the name of the Chazon ish)
2-A Teacher in a yeshiva is not only required to be a competent Teacher and a good communicator ,a Teacher is required to be one with SUPERIOR character. (Emunah Ubetachon)
3-Choosing the right words to say captures the virtue of silence More than complete silence.
4-it is spiritually unhealthy and Dangerous to postpone talking with someone who seeks help and inspiration. (Letters of the Chazon ish)
5- it is quite doubtful that someone who lacks in his character could achieve torah Scholarship.