Aspiration can be positive since it allows motivation. For example, the aspiration of one day owning a car motivates a person to work hard. On the other hand, this can have a negative effect when the aspirations are are set too high and not met for instance, someone aspiring a goal of becoming a millionaire was not met. This could affect the person by causing them to loose all motivation and potentially loose themselves and other aspirations.
Because there is a limited amount of compost with a limited amount of minerals. In the garden there is loads of soil and loads of minerals. because of decomposition and absorption minerals can easily be replaced in the garden soil, unlike in a plant pot.
well first he would have to work intervals at a time for example 15 min study intervals then snack break but only brain foods to help his memory then repeat the proceed until desired time