Malthusianism is the belief that population growth tends to outstrip expansion of food production and that population growth can only be controlled by:

Malthus believed that two checks: Preventive check and positive check help to control population growth. Preventive check usually involves moral restraint where a person chooses to practice abstinence, or delays marriage until one's financially able. In some cases, one could also be prevented from marriage or conjugation by the direct influence of others. While positive check talks about war, epidemic, diseases and more. These two checks, according to Malthus, help to keep population growth on at bay.

1.  go out into nature and commune with the divine2.  experience real solitude to truly perceive nature3.  realize that individuals are meant to learn from nature and transcend it4.  think of nature as a symbol of the divine