The one quality I value above all in others is a sense of humour. Perhaps it stems from the fact that I myself am not endowed with the capacity to make people laugh although it does transpire occasionally. When alone I often find myself recollecting amusing little pellets of conversation and moments of mirth from the past then giggling, at times hysterically, to myself irrespective of where I am. Perhaps not surprisingly, the general public find this somewhat disturbing and look at me as if I was mad but I don’t pay them any attention and carry on with my merriment. However, I do sometimes wonder what makes it impossible for people to laugh when they're alone and find the best explanation offered by Schopenhauer who attributed it to ‘want of imagination’ and general ‘dullness of mind’.