Just as courage imperils life, fear protects it.

There is no result in nature without a cause; understand the cause and you will have no need of the experiment.

Marriage is like putting your hand into a bag of snakes in the hope of pulling out an eel.

Vitality and beauty are gifts of Nature for those who live according to its laws.

Many have made a trade of delusions and false miracles, deceiving the stupid multitudes.

Fire is to represent truth because it destroys all sophistry and lies; and the mask is for lying and falsehood which conceal truth.

Anyone who invokes authors in discussion is not using his intelligence but his memory.