Steve Jobs was a visionary leader who believed in thinking differently and staying hungry. Some of his key philosophies included designing products that were cool, human and user-friendly. He felt companies should be market-driving rather than market-driven. Jobs also emphasized the importance of not wasting time and following your heart rather than the opinions of others. His career highlights included launching the Mac, iPod, iPhone and iPad which showed his ability to see the future and invent products people didn't know they wanted.