Shiva Purana

siva.sh/siva-purana/uma-samhita/23/47

अव्यक्तेन्द्रियवृत्तित्वाद्बाल्ये दुःखं महत्पुनः ।। इच्छन्नपि न शक्नोति वक्तुं कर्त्तुं प्रतिक्रियाम् ।। ४७ ।।

sanskrit

There is again this great misery in infancy (bālya) because the operative power of the sense-organs is not clearly manifest or developed. Even if he wishes he is unable to express or take remedial or preventive measures.

english translation

avyaktendriyavRttitvAdbAlye duHkhaM mahatpunaH || icchannapi na zaknoti vaktuM karttuM pratikriyAm || 47 ||

hk transliteration by Sanscript