PERSON@1 -LRB- February NUMBER@1 , NUMBER@2 -- September NUMBER@3 , NUMBER@4 -RRB- was a MISC@1 philosopher known for his atheistic pessimism and philosophical clarity .

PERSON@1 -LRB- February NUMBER@1 , NUMBER@2 -- September NUMBER@3 , NUMBER@4 -RRB- was a MISC@1 philosopher .
