Oh external worshiper, know that worship without heart is motions. Oh seeker of knowledge, know that knowledge without purification is a dangerous weapon of the ego. Oh activist, know that work without orientation of heart is fruitless. Oh lover, know that love without God is pain. - Yasmin Mogahed
Life without God is a long and fruitless search for enjoyment, meaning, and fulfillment. - Jim George
The fountain of content must spring up in the mind, and he who hath so little knowledge of human nature as to seek happiness by changing anything but his own disposition, will waste his life in fruitless efforts and multiply the grief he proposes to remove. - Samuel Johnson
How sweet all at once it was for me to be rid of those fruitless joys which I had once feared to lose..! You drove them from me, you who are the true, the sovereign joy. You drove them from me and took their place.... O Lord my God, my Light, my Wealth, and my Salvation. - Augustine of Hippo
All pursuits are pointless and fruitless unless and until love and compassion are found and then are the foundation and destination of all you do - Rasheed Ogunlaru
The Amorous Shepherd is a fruitless interlude, but those few poems are among the world’s greatest love poems, because they’re love poems about love, not about being poems. The poet loves because he loves, not because love exists. - Álvaro de Campos