That Powerful Book

“Sometimes, you read a book and it fills you with this weird feeling of zeal, and you become convinced that the shattered world will never be put back together unless and until all living humans read the book.”

אורות התשובה

שפת אמת על התורה

[I won't mention non-Jewish books not b/c I don't think that everyone should read them but b/c they don't belong on the same list with the קדושי עליון]

What is that book for you?