Rig Veda
रथे॒ तिष्ठ॑न्नयति वा॒जिन॑: पु॒रो यत्र॑यत्र का॒मय॑ते सुषार॒थिः । अ॒भीशू॑नां महि॒मानं॑ पनायत॒ मन॑: प॒श्चादनु॑ यच्छन्ति र॒श्मय॑: ॥ रथे तिष्ठन्नयति वाजिनः पुरो यत्रयत्र कामयते सुषारथिः । अभीशूनां महिमानं पनायत मनः पश्चादनु यच्छन्ति रश्मयः ॥
The skilful charioteer, standing in the car, derives his horses before him whatsoever he will; praise the efficacy of the reins, for the reins from the back (of the car compel the steeds) to follow the intention (of the driver).
english translation