Thesis Locke was right that the mind starts without ideas, and the argument from the newborn’s hunger fails
Where it stands
I'm biased towards Locke, I admit. But I came across an argument for innate knowledge from the Nyāya tradition that I had never seen, and I want to test my bias against it.
Locke's case in Book I of the Essay is that there are no innate ideas. If there were, everyone would assent to them, and children and people with serious cognitive disabilities do not. The mind begins, in his famous image, like white paper. What is innate is the capacity to receive and work on experience, not any content.
The opponents are old and distinguished. Plato's Meno has the slave boy "recollecting" geometry. Leibniz, answering Locke, compared the mind not to blank paper but to a block of marble with veins that already outline the statue.
The Nyāya argument is different and, I think, more empirical. The Nyāya Sūtra points to the newborn. A baby, hours old, seeks the breast, shows fear and shows joy. Desire, the argument runs, requires a prior cognition that the object brings satisfaction; the newborn has had no experience in this life; so the cognition must come from a previous one. The argument is used to support the existence of a self that persists across lives.
My thesis: the argument mistakes a capacity for a content. The newborn's seeking is an inherited reflex, explained by evolution, not a memory of anything. Locke's line between innate capacities and acquired ideas holds.
I'm sure someone here can make the Nyāya case better than I just did.