Unless people can be kept in the dark, it is best for those who love the truth to give them the full light.

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 is difficult to be maintained. When the materials of a building are solid blocks of stone, very rude architecture will suffice; but a structure of rotten materials needs the most careful adjustment to make it stand at all.

If all our wishes were gratified, most of our pleasures would be destroyed.

Even supposing there were some spiritual advantage in celibacy, it ought to be completely voluntary.

It is worth noticing that those who assume an imposing demeanor and seek to pass themselves off for something beyond what they are, are not unfrequently as much underrated by some as overrated by others.

The more secure we feel against our liability to any error to which, in fact, we are liable, the greater must be our danger of falling into it.