Shatakatraya 1.58

1.58

maunomūkaḥ pravacana-paṭur bāṭulo jalpako vā
dhṛṣṭaḥ pārśve vasati ca sadā dūrataś cāpragalbhaḥ |
kṣāntyā bhīrur yadi na sahate prāyaśo nābhijātaḥ
sevādharmaḥ parama-gahano yoginām apy agamyaḥ ||

Silent, he is called dumb; eloquent, a babbler or a prattler; / standing near, impudent; standing far off, lacking confidence; / through patience, a coward; if he cannot endure, generally lowborn: / the duty of service is exceedingly deep, unapproachable even by yogins.