sententiola

sententĭŏla, ae, f. dim. [sententia],

a short or little sentence , maxim , or aphorism : sententiolas edicti cujusdam memoriae mandavi, * Cic. Phil. 3, 9, 21; Quint. 5, 13, 37; 9, 2, 98; 11, 1, 52; 12, 10, 73; Petr. 118, 2; Gell. 17, 12, 4.