A vow is a purely religious act which cannot be taken in a fit of passion. It can be taken only with a mind purified and composed and with God as witness.
Science is the father of knowledge but opinion breeds ignorance.
Everything in excess is opposed to nature.
Whenever a doctor cannot do good he must be kept from doing harm.
There are in fact two things science and opinion the former begets knowledge...
Nothing is so threatening to conventional values as a man who does not...
Ignorance more frequently begets confidence than does knowledge: it is...
No thief, however skillful, can rob one of knowledge, and that is why...
