Question

In what ways is knowledge "bread "

Answer 1

People need food to live or you will die but when you read you learn things so in order to learn something out of a book you need to be able to read so something so simple as bread to keep you alive is like something as simple as reading in order to learn

Answer 2

Maybe it can be the fact that the yeast grows when it is heating up, just like an expanse of knowledge.