Limit your training sessions to fifteen minutes; twice each day. One half-hour session is not recommended as a rock's attention span is rather short. Remember; a bored rock is an unhappy rock.

The executioner was proud that he kept his axe razor-sharp, so no prisoner would feel any pain when his head was cut off.

First, the technical terms used to signify hindu ascetics, hermits, mendicants and some related terms are analysed in their religious meaning with the view of avoiding a good deal of confusion that exists in such studies.

The square root of 4 is 2. No negative real square roots exist. Negative numbers have no real square roots.