B.G 14.18

ऊर्ध्वं गच्छन्ति सत्त्वस्थाः मध्ये तिष्ठन्ति राजसाः। जघन्यगुणवृत्तिस्था अधो गच्छन्ति तामसाः ॥१८॥

ūrdhvaṁ gacchanti sattvasthāḥ madhye tiṣṭhanti rājasāḥ। jaghanyaguṇavṛttisthā adho gacchanti tāmasāḥ ॥18॥

[ऊर्ध्वं (ūrdhvam) - upwards; गच्छन्ति (gacchanti) - go; सत्त्वस्थाः (sattvasthāḥ) - situated in goodness; मध्ये (madhye) - in the middle; तिष्ठन्ति (tiṣṭhanti) - remain; राजसाः (rājasāḥ) - those in the mode of passion; जघन्यगुणवृत्तिस्थाः (jaghanyaguṇavṛttisthāḥ) - those of abominable quality; अधः (adhaḥ) - downwards; गच्छन्ति (gacchanti) - go; तामसाः (tāmasāḥ) - those in the mode of ignorance;]

Those who are in the mode of goodness ascend upwards; those in the mode of passion stay in the middle; while those in the mode of darkness, characterized by abominable qualities, descend downwards.