A quote from the Wikipedia article about Nikola Tesla, probably the greatest inventor of all time and one of the people who inspire me most (he was around 30 back then):
In 1886, Tesla formed his own company, Tesla Electric Light & Manufacturing. The initial financial investors disagreed with Tesla on his plan for an alternating current motor and eventually fired him, forcing him to work as a ditch digger for $2 per day. Tesla considered the winter of 1886/1887 a time of "terrible headaches and bitter tears" and questioned the value of his education.
It was a year of bitter tears, indeed. But I'd like to paint a better picture for the next one by celebrating my 30th birthday, 13 July around 8pm Istanbul time at a pub named Karga. I'd be delighted if you could join me for a drink.