A.C. Bhaktivedanta Swami Prabhupada
If someone is shaving with a straight edge razor and they are a little careless, they can easily cut themselves. So, spiritual life is like a razor’s edge: just that it takes a little bit of bodily identification, a little bit of mental concoction and we may get off the track. Maybe in a future life we will get a chance. Nothing is lost is in this endeavour.
Srimad Bhagavatam
The Sankirtana movement we have started offers the best process for becoming purified of all sinful reactions and coming immediately to the platform of spiritual life.
Srimad Bhagavatam 6.2.11
Bhakti Charu Swami
As long as our consciousness is materialistic, there is no room for joy. However on the spiritual platform three things automatically happen: eternity, knowledge and bliss.
Chaitanya Caritamrta
Caitanya Caritamrta on Progressing in Spiritual Life in Different Yugas: For progress in spiritual life, the sastras recommend meditation in Satya-yuga, sacrifice for the satisfaction of Lord Visnu in Treta-yuga and gorgeous worship of the Lord in the temple in Dvapara-yuga, but in the Age of Kali one can achieve spiritual progress only by chanting the holy name of the Lord.
Purport on Caitanya Caritamrta Adi Lila 7.76
Mahanidhi Swami
Only if mercy (of Vaisnavas) descends, we ascend (in spiritual life).
Bhakti Vikas Swami
Without spiritual life, even if you live very simply, very clean and a very natural life, there is no use because the animals are also living a simple,natural life. So simple living is not the goal, but it’s very conducive for Krishna consciousness.
Lecture on “Simple Life on Farm Communities” (Pula Farm, Croatia, 20 October 2000)