Gemini Wind

You have given good examples, but it is the next best thing to the definition. Yes, we human beings can and often learn by examples, that's the inborn human learning mechanism (neural network in your brain).

IQ is merely a score system trying to quantify the quality of your inborn neural network. Intelligence is the propensity of logic reasoning based on the physical or metaphysical stimuli (application of your inborn neural network).

Wisdom is the ability to see/understand the core issues through the thick and thin and to take the optimal action (thus a trained neural network). A intelligent man is often unhappy because he sees the dark side of life, but a wise man would know how to live a happy life.

Isn't this interesting? all sciences, engineerings, arts, music, and poetries are all inter-related! Simplicity in complexity is the beauty of life, and happiness rest within simplicity. Well, that's my philosophy since 15, perhaps you will feel the same way as well.

In between your words, you seem to be implying the past relationship and sadness. If so, nothing is ever too late... may you find the happiness within you.