Deidre sank to the floor, not trusting herself.
Trusting people you shouldn't.
You're safer trusting him than anyone else.
He moreover accuses Eratosthenes, (whose determination of a degree he accepts without hesitation) with trusting too much to hypothesis in compiling his map instead of having recourse to latitudes and longitudes deduced by astronomical observations.
She nodded, not trusting herself to say anything else.