You can be inspired by a quote on the internet, inspired to learn a new language, inspired by a sporting event... but it means nothing if you don't use it to your advantage.
All of the above are good reasons to be inspired, but I find that most inspiration comes from those we have contact with. I was having a conversation about this exact subject last night and I don't think people know how much they inspire others, without even realising it.
You don't need to have climbed Everest, you don't need to have 10 degrees, you don't even need to have completed a crazy challenge of any description. You can be a normal person, doing the things they love on a day to day basis and trying to make other people realise what they are capable of.
Everyone is inspiring in their own way...