The lives of philosophers would be dull reading if they were as tidy as their thoughts often tend to be. Alastair Hannay describes how he 'slid' into philosophy but found it a useful means of transport for a life framed here in metaphors of the sea, an unruly element that has played some part in a not always tidy life. Although the philosophy option attracts some because it suits their talents, the less talented may look to it for guidance...