I'm a retired electrical engineer and adjunct professor of math and engineering. I am also working on an engineering book.
I have been investing for over 30 years, starting off with stock index funds, bond funds, and stable value funds and later migrating in part to dividend paying stalwarts as retirement approached. I typically use a "buy and hold" strategy with an eye on the long-term.
I am a member of the "Apple cult" so until it is proven otherwise that Apple is not a great company that develops and sells great products that people love I will continue to buy their products and own their stock.