"Rationalism can be most easily understood by contrast with empiricism. The former stresses the mind in the knowing process and the latter lays emphasis on the senses. In the ancient world these emphases were found respectively in Plato and Aristotle." - Norman L. Geisler. Christian Apologetics (p. 29).
Proverbs 6:12-15 Updated American Standard Version (UASV) 12 A worthless man, a wicked man, goes about with crooked speech, 13 winks with his eyes, scrapes with his feet, points with his finger, 14 with perverted heart devises evil, continually sowing discord; 15 therefore calamity will come upon him suddenly; in a moment he will be broken beyond healing.