5864   futility

Ecclesiastes 2:12-23

     5916   pessimism

Ecclesiastes 2:17-23

     5081   Adam, life of

Ecclesiastes 2:21-22

     5569   suffering, hardship

Ecclesiastes 2:22-23

     4016   life, human
     5537   sleeplessness
     5634   work, and the fall
     5933   restlessness
     8849   worry