Comedy legend Bill Cosby turned 75 years old today, and his poignant brand of comedy remains relevant to this day.
But even the greatest comedians have their bad days, as the above clip featuring Cosby on "The Dick Cavett Show" attests.
In it, a younger, cigar-smoking Cosby talks about what it means to "bomb" on stage and urges young, up-and-coming comedians to keep at it even though they'll inevitably have bad nights. He then tells the story of one of his worst shows ever, wherein an unfortunate seating arrangement completely threw his set off course.
Watch the video above and check out some of Cosby's most controversial quotes in the related slideshow below.