Augustine: “You made us for yourself, and our hearts find no peace till they rest in you.”

“He loves Thee too little who loves anything together with Thee, which he loves
not for Thy sake.”

“If the things of this world delight you, praise God for them but turn your love
away from them and give it to their Maker, so that the things that please you
may not displease Him.”

John Piper:

Are we in bondage to the pleasures of this world so that, for all our talk about the glory of God, we love television and food and sleep and sex and money and human praise just like everybody else? If so, let us repent and fix our faces like flint toward the Word of God. And let us pray: ‘O Lord, open my eyes to see the
sovereign sight that in your presence is fullness of joy and at your right hand are pleasures forevermore’ (Psalm 16:11).

— The Legacy of Sovereign Joy: God’s Triumphant Grace in the Lives of Augustine, Luther and Calvin