As for myself, I report more things than I believe; for I cannot bring myself to vouch for that which I am in doubt, nor to suppress what I have heard.
Equidem plura transcribo quam credo; nam nec affirmare sustineo de quibus dubito, nec subducere quae accepi.
Original text (Latin)
Notes from Wikiquote
1, 34; translation by John Carew Rolfe