Prof. Dave Retterer is a member of both the Department of Mathematics in the College of Arts and Sciences and the Computer Science Program in the College of Engineering at Ohio Northern University in Ada, Ohio.

Prof. Retterer Courses

Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. Broad, wholesome, charitable views of men and things cannot be acquired by vegetating in one little corner of the earth all one's lifetime. Mark Twain

I have sworn upon the altar of God eternal hostility against every form of tyranny over the mind of man. Thomas Jefferson