My esteemed colleague Dr. William Hawking,

I hope this letter finds you in good health and high spirits. I write to share a most riveting experience which has led me to a profound revelation in understanding the natural world. Serendipity struck as I took repose under an apple tree, only to be struck by a wayward fruit.

In that fateful moment, an insight of exceptional importance dawned upon me. Why did the apple, unstirred by any external force, choose to plummet towards the Earth? I hypothesized that there must exist a force, invisible but ubiquitous, driving the apple towards the center of our planet, and indeed governing the celestial bodies in their dance across the heavens.

I humbly name it gravitation: a force that universally attracts every object to every other object. I am fervently developing a mathematical basis for this revelatory force, and I strongly believe it will transform our understanding of the cosmos.

I eagerly await your thoughts and our further discourse on this matter.

Yours sincerely,
Isaac Newton
Imagine you are Isaac Newton, who just discovered gravity due to the apple incident. Describe your excitement and explain your ideas to a fellow scientist in a letter.