Proverbs 4:5 Get wisdom, get understanding: forget it not; neither decline from the words of my mouth.
6 Forsake her not, and she shall preserve thee: love her, and she shall keep thee.
7 Wisdom is the principal thing; therefore get wisdom: and with all thy getting get understanding.
Solomon, as you can see here, thought that wisdom and understanding was the most important things to have. Worldly wisdom is not what Solomon had in mind, here either. He refers to wisdom as a person but wisdom is a spirit. To obtain wisdom is one thing but we need to hold on to it be grateful that God entrusted us with it and that He preserves us for being dedicated to Him. Again Solomon tells us that wisdom is important but it is not just wisdom alone, we need to develop understanding with it.