CREATE TABLE table_14835674_1 (introductory_phrase VARCHAR, guest VARCHAR)

What was the inroductory phase for the episode with neil shubin as a guest?
SELECT introductory_phrase FROM table_14835674_1 WHERE guest = "Neil Shubin"
SELECT "introductory_phrase" FROM "table_14835674_1" WHERE "Neil Shubin" = "guest"