In The Name of Allah, The Most Merciful, The Bestower of Mercy.

A woman said to Imam Ash-Shabee, may Allah have mercy upon him, ”O scholar! Give me a verdict”. He said, “Indeed, a scholar is one who fears Allah, The Mighty and Majestic”. [1]

Bilal Ibn Sa’d, may Allah have mercy upon him, said: “Do not be a friend of Allah in the open (i.e. the good you show in public) and an enemy of His in private”. [2]

Al-Hasan Al-Basri, may Allah have mercy upon him, said: “Admonish the people with your actions and not (only) with your statements”. [i.e. act upon what you call to].

Ataa Al-Azraqi said: A man said to Hasan al-Basri: “O Abu Sa’eed! How are you?” He said: “What is the state of affairs of one who reaches the morning and the evening whilst waiting for death, and he does not know what Allah will do with him?!”

He said: “If you see a man competing with you in the worldly thing, compete with him in the (affairs) of the afterlife”.
He said: “The basis of evil are three and its branches are six. The basis are: Envy, covetousness and love of the worldly life. Its branches are love of leadership, love of boasting, love of praise, love of excessive food, sleep and relaxation. [3]

[1] Jami Bayan Al-Ilm 1/267

[2] Siyar 11/518

[3] Sirah As-Salaf As-Salih 1/1752 By Imaam Ismaaeel Bin Muhammad Bin Fadl Al-Asbahaanee (535AH: Chapter: A mention of those who followed the companions in righteousness)