"The sea of ??suffering is boundless, but when you turn around, you will find shore". This famous saying comes from Buddhism, not Taoism. Gautama Siddhartha (Sakyamuni) in ancient India founded Buddhism in the 6th century BC and preached "the equality of all living beings" against the privileged status of Brahmins. It believes that the development of all things in the world has cause and effect. Human birth, old age, illness and death are all suffering. People must eliminate desires and practice hard.

So the answer is:

Error: Taoism; Correction: Buddhism.