A nerd guy head. For the mouth I used this clipart "Mouth and Teeth" by gustavorezende http://openclipart.org/detail/141655/mouth-and-teeth-by-gustavorezende
An image to illustrate the quote "a bicycle for our minds" by Steve Jobs, who said it when describing how he saw the function of computers. A simple pink profile of a male human head containing a grey outline of a brain which itself contains a black silhouette of a bicycle.