Bhagavad Gita 18.48

सहजं कर्म कौन्तेय सदोषमपि न त्यजेत्।सर्वारम्भा हि दोषेण धूमेनाग्निरिवावृताः॥

sahajaṃ karma kaunteya sadoṣamapi na tyajet |sarvārambhā hi doṣeṇa dhūmenāgnirivāvṛtāḥ ||

One should not, O Arjuna, abandon the duty to which one is born, though it may be faulty; for, all undertakings are enveloped by evil, just as fire is by smoke.

The duty that falls to one's lot of its own accord should not be abandoned, though it may have its defects. All acts are marred by defects, just as fire is obscured by smoke.

Our plain-language meaning of this verse is waiting for scholar review.