Valmiki Ramayana Kishkindha Kanda Sarga 35 Shloka 8
Original Shlokaस हि प्राप्तं न जानीते कालं कालविदां वरः। विश्वामित्रो महातेजाः किं पुनर्यः पृथग्जनः।।4.35.8।।
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कालविदाम् वरः a distinguished person among those who know the value of time, महातेजाः brilliant, सः that, विश्वामित्रः Visvamitra, प्राप्त कालम् right time, न जानीते did not know, यः he who, पृथग्जनः ordinary man, किं पुनः what else.
'If the brilliant and the most distinguished of those who knew the value of time did not realise the passing of time, what can be said of an ordinary person?