"Strange is our situation here upon earth. Each of us comes for a short visit, not knowing why, yet sometimes seeing divine a purpose. From the standpoint of daily life, however, there is one thing we do know: that we are here for the sake of others... above all, for those upon whose smile and well-being our own happiness depends, and also for the countless unknown souls with whose fate we are connected by a bond of sympathy. Many times a day I realize how much my own outer and inner life is built upon the labors of my fellows both living and dead, and how earnestly I must exert myself in order to give in return as much as I have received and am still receiving."