Ahli-ahli psikologi Barat menuduh agama menindas tenaga hidup manusia yang penting dan menjadikan kehidupannya agak sengsara akibat rasa bersalah yang terutamanya menghantui orang-orang beragama, lalu membuatkan mereka membayangkan bahawa semua perbuatan mereka berdosa dan hanya boleh ditebus dengan menahan diri daripada menikmati kesenangan hidup. Ahli-ahli psikologi itu menambah bahawa Eropah hidup dalam kegelapan kejahilan selagi ia berpegang kepada agamanya, tetapi setelah ia membebaskan dirinya daripada belenggu agama, emosinya menjadi bebas dan oleh itu ia mencapai keajaiban dalam bidang pengeluaran.

Western psychologists accuse religion of repressing the vital energy of man and rendering his life quite miserable as a result of the sense of guilt which especially obsesses the religious people and makes them imagine that all their actions are sinful and can only be expiated through abstention from enjoying the pleasures of life. Those psychologists add that Europe lived in the darkness of ignorance as long as it adhered to its religion but once it freed itself from the fetters of religion, its emotions were liberated and accordingly it achieved wonders in the field of production.