Proverbs 30:18-19

[18] There be three things which are too wonderful for me, yea, four which I know not: [19] The way of an eagle in the air; the way of a serpent upon a rock; the way of a ship in the midst of the sea; and the way of a man with a maid.

What is the context of Proverbs 30:18-19?

What Causes Wonder (Proverbs 30:18-33 true)
The Words of Agur (Proverbs 30:1-33 true)
The Sayings of Agur (Proverbs 30:1-33 true)
Sayings of Agur (Proverbs 30:1-33 true)
The Oracle of Agur (Proverbs 30:1-33 true)
The Wisdom of Agur (Proverbs 30:1-33 true)

What does Proverbs 30:18-19 Mean?

Contextual Meaning

These four "ways" (Heb. derek) have several things in common that make each of them remarkable. All are mysterious (inexplicable), non-traceable, effective in their element, and aggressive. "The way of a man with a maid" refers to the process by which a woman comes to love a man. The point of these four snapshots seems to be, that in view of remarkable phenomena such as these, arrogance is absurd and humility only reasonable (cf. Job 38-41).