He that is not open to conviction is not qualified for discussion.

It may be worth noticing as a curious circumstance, when persons past forty before they were at all acquainted form together a very close intimacy of friendship. For grafts of old wood to take, there must be a wonderful congeniality between the trees.

It is an awful, an appalling thought, that we may be, this moment and every moment, in the presence of malignant spirits.

As a science, logic institutes an analysis of the process of the mind in reasoning, and investigating the principles on which argumentation is conducted; as an art, it furnishes such rules as may be derived from those principles, for guarding against erroneous deductions.

Falsehood, like poison, will generally be rejected when administered alone; but when blended with wholesome ingredients may be swallowed unperceived.

It is one thing to wish to have truth on our side, and another to wish sincerely to be on the side of truth.

Geologists complain that when they want specimens of the common rocks of a country, they receive curious spars; just so, historians give us the extraordinary events and omit just what we want,--the every-day life of each particular time and country.