Tractate Berakoth, by , by A. Lukyn Williams, [1921], at sacred-texts.com
9 (8). If a bridegroom wishes to recite the Shma‘ the first night he may recite it. Rabban Simeon ben Gamaliel 4 says: Not every one who wishes to make a name for himself, makes it. 5
21:4 Rabban Simeon ben Gamaliel. Son of Gamaliel II., flourished c. 130-160 A.D., the father of R. Judah the Prince, who was the compiler of the mishna.
21:5 A warning against vanity and pride, which lead to hypocrisy. Not every one can safely imitate R. Gamaliel (see M. 6(5), p. 19).