In the search for truth - that everything in nature seems to hide - man needs the assistance of all his faculties. All the senses should be awake.

He who commends the brutalities of the past, sows the seeds of future crimes.

Every cradle asks us, Whence? and every coffin, Whither? The poor barbarian, weeping above his dead, can answer these questions as intelligently as the robed priest of the most authentic creed.

In the presence of eternity, the mountains are as transient as the clouds.

It is perfectly delightful to take advantage of the conscientious labors of those who go through and through volume after volume, divide with infinite patience the gold from the dross, and present us with the pure and shining coin. Such men may be likened to bees who save us numberless journeys by giving us the fruit of their own.

Intelligence is the only moral guide.

The God of Hell should be held in loathing, contempt and scorn. A God who threatens eternal pain should be hated, not loved - cursed, not worshiped. A heaven presided over by such a God must be below the lowest hell.