(18) Why are descriptive definitions best for young children? What educational principle is involved?

(19) From the standpoint of the five rules for logical definition criticise the following:

(1) A man is a reasonable vertebrate.

(2) A gentleman is a man with no visible means of support.

(3) A man is an organized entity whose cognitive powers function rationally.

(4) A metal is an element with a metallic luster.

(5) A triangle is a figure of three sides.

(6) A teacher is one who imparts knowledge.

(7) Education is the process of drawing out all that is beautiful in the body and noble in the soul.

(8) A democrat is a man who believes in free trade.