What I believe this quote to mean is that knowledge comes to you when you learn more and more about everything, but wisdom only ligers. It takes more than just being knowledgable about something to be wise. You could know everything in the world, but if you do not know HOW to use that knowledge then you are not wise.

So its not a question of what you know, its a questio of what you do with it that counts. That varies from individual to individual, depending on how quick they adapt their knowledge

Without knowledge action is useless and knowledge without action is futile.

Knowledge comes, but wisdom lingers. It may not be difficult to store up in the mind a vast quantity of face within a comparatively short time, but the ability to form judgments requires the severe discipline of hard work and the tempering heat of experience and maturity.

Calvin Coolidge

I think it means this….

In life, so much knowledge comes your way…

math, science, language, daily living facts, common sense things etc.

If you learn to apply that knowledge to your everyday life as valuable information it will linger. experience of knowing that knowledge is important will linger

it means to me that knowlage come in learning form so it can be lost but wisdow stays with one who has wisdom.