Every person in Israel is obligated to be engaged in Torah learning,
whether one is poor or wealthy
whether one is whole in body or afflicted with suffering,
whether one is young or one is old and feeble,
even a poor person who is supported by charity
and goes from door to door seeking benevolence,
even the man supporting his wife and children--
everyone is required to find a set time during the day and the night
to study Torah, as it was said,
"You shall go over it, again and again, day and night" (Joshua 1:8)

--Moses Maimonidies, Mishnah Torah, Hilkot Talmud Torah 1:8