The profound thinker always suspects that he is superficial.
As we retain but a faint remembrance of our felicity, it is but fair that the smartest stroke of sorrow should, if bitter, at least be brief.
An author can have nothing truly his own but his style.
Be thine own privy counsellor.
Never take anything for granted.
Scientific, like spiritual truth, has ever from the beginning been descending from heaven to man.