Mahabharata 4.4.40

4.4.40

yo vai gṛhebhyaḥ pravasanpriyāṇāṃ nānusaṃsmaret |
duḥkhena sukhamanvicchetsa rājavasatiṃ vaset || 40 ||

The courtier who attempts to obtain his end by employing force on the king, cannot keep his place long and incurs also the risk of death. None should, for the purpose of self-interest, open communications with the king's enemies. Nor should one distinguish himself above the king in matters requiring ability and talents. He that is always cheerful and strong, brave and truthful, and mild, and of subdued senses, and who followeth his master like his shadow, is alone worthy to dwell in a royal household. He that on being entrusted with a work, cometh forward, saying,--I will do this--is alone worthy of living in a royal household. He that on being entrusted with a task, either within the king's dominion or out of it, never feareth to undertake it, is alone fit to reside in a royal household. He that living away from his home, doth no remember his dear ones, and who undergoeth (present) misery in expectation of (future) happiness, is alone worthy of dwelling in a royal household. One should not dress like the king, nor should one indulge, in laughter in the king's presence nor should one disclose royal secrets. By acting thus one may win royal favour. Commissioned to a task, one should not touch bribes for by such appropriation one becometh liable to fetters or death. The robes, ornaments, cars, and other things which the king may be pleased to bestow should always be used, for by this, one winneth the royal favour.