" So what if I don't learn algebra?'

'Someday schools will be open again,' Mom said. 'Things will be normal. You need to do your work now for when that happens.'

'That's never going to happen,' Jon said. 'And even if schools do open up somewhere, they're not going to open up here. There aren't enough people left.'

'We don't know how many people are like us, holed up, making do until times get better.'

'I bet whoever they are, they aren't studying algebra,' Jon said. "

― Susan Beth Pfeffer , This World We Live In (Last Survivors, #3)