Sanskrit Shlok and Hindi Muhavara on the difference between word and action

शरदि न वर्षति गर्जति 
वर्षति वर्षासु नि:स्वनो मेघ: 
नीचो वदति ने कुरुते 
न वदति सुजन: करोत्येव. 

Sharadi Na Varshati Garjati
Varshati Varshasu Ni: Swano Megh:
Neecho Vadati na kurute,
Na vadati sujan: Karotyev.

Meaning: In the Sharad season, the clouds make a lot of noise, but do not rain. During the rainy season, however, they rain, but make no noise. Similarly, a boastful person talks a lot, but does nothing, while a virtuous one performs the action without talking about it.

The Hindi Muhavara that says the same thing is:
जो गरजते हैं सो बरसते नहीं 
Jo Garajte hain So Baraste Nahi

Those who thunder, they do not rain.

Usage: आप बस उसे धमकाते ही रहते हो, कि खेत पर काम में लगा देंगे. अब तो वह भी समझ गया है, जो गरजते हैं, वो बरसते नहीं। इसीलिए निडर हो गया है.