What gives rise to optimism is the absence or ineffectiveness of ideals and dreams, whereas the main source of pessimism is the passion and attachment to these ideals and dreams, and the frustration they bring when faced with an ordinary world.

 What gives rise to optimism is the absence or ineffectiveness of ideals and dreams, whereas the main source of pessimism is the passion and attachment to these ideals and dreams, and the frustration they bring when faced with an ordinary world.