‘Let us never know what old age is. Let us know the happiness time brings, not count the years.’ – Ausonius

‘If fortune favors you do not be elated; if she frowns do not despond.’ – Ausonius

‘Forgive many things in others; nothing in yourself.’ – Ausonius

‘No man pleases by silence; many I please by speaking briefly.’ – Ausonius

‘When about to commit a base deed, respect thyself, though there is no witness.’ – Ausonius

‘The knowledge of anything, since all things have causes, is not acquired or complete unless it is known by its causes.’ – Avicenna

‘The world is divided into men who have wit and no religion and men who have religion and no wit.’ – Avicenna

‘Therefore in medicine we ought to know the causes of sickness and health.’ – Avicenna

‘That whose existence is necessary must necessarily be one essence.’ – Avicenna

‘As to the mental essence, we find it in infants devoid of every mental form.’ – Avicenna