CREATE TABLE table_4194 ("No. in series" FLOAT, "No. in season" FLOAT, "Title" CLOB, "Directed by" CLOB, "Written by" CLOB, "Original air date" CLOB, "Production code" FLOAT)

Who wrote episode 23 of the season?
SELECT "Written by" FROM table_4194 WHERE "No. in season" = '23'
SELECT "Written by" FROM "table_4194" WHERE "No. in season" = '23'