Abbie Hoffman and Jerry Rubin became the most famous Yippies — and bestselling authors — in part due to publicity surrounding the five-month Chicago Seven Conspiracy trial of 1969 . They both used the phrase " ideology is a brain disease " to separate the Yippies from mainstream political parties that played the game by the rules . Hoffman and Rubin were arguably the most colorful of the seven defendants accused of criminal conspiracy and inciting to riot at the August 1968 Democratic National Convention . Hoffman and Rubin used the trial as a platform for Yippie antics — at one point , they showed up in court attired in judicial robes
1968 Democratic National Convention
1968 Democratic National Convention
Youth International Party