Abstruse thought and profound researches I prohibit, and will severely punish, by the pensive melancholy which they introduce, by the endless uncerta… - David Hume

Be a philosopher; but, amidst all your philosophy, be still a man.

Be a philosopher, but amid all your philosophy be still a man.

In vain, therefore, should we pretend to determine any single event, or infer any cause or effect, without the assistance of observation and experience.

Necessity may be defined in two ways, conformably to the two definitions of cause, of which it makes an essential part. It consists either in the constant conjunction of like objects, or in the inference of the understating from one object to another.

There is nothing to be learnt from a Professor, which is not to be met with in Books.