Hawzah News Agency – Imam Sadiq peace be upon him says:

ثلاثةٌ فيهِنَّ البَلاغةُ: التّقَرُّبُ مِن‏ معنى‏ البُغْيةِ، والتَّبَعُّدُ مِن حَشْوِ الكلامِ، والدَّلالةُ بالقليلِ على‏ الكثيرِ.

'Eloquence lies in three things: coming close to the intended meaning, avoiding waffling, and communicating more meaning in fewer words.'

Source: Tuhaf al-Uqul, no. 317