1)
How does one's pride lower him?
1.
Malbim #1: One who is haughty, he shows that he does not understand his value - he is like a blossom that falls; he is considered like nothing. This itself lowers him!
2.
Malbim #2: This is a punishment - "Lifnei Shever Ga'on" (16:18).
2)
How is "Shefal Ru'ach Yismoch Kavod"?
1.
Rashi: He approaches honor, and supports it constantly.
2.
Malbim: Shefal Ru'ach is the opposite of pride.