“Better to trip with the feet than with the tongue.”
~Zeno of Citium, Greek philosopher
Cited by Diogenes Laërtius, Lives of Eminent Philosophers (3rd century) trans. Robert Drew (R.D.) Hicks, Book VII, chapter 1, no. 26, Cambridge, MA: Harvard University Press, 1972 [first published 1925]; online via Perseus Digital Library, Tufts University, www.perseus.tufts.edu