Be harsh with yourself at times.

There exists no more difficult art than living.

There has not been any great talent without an element of madness. -Nullum magnum ingenium sine mixtura dementiae fuit

It is never too late to turn from the errors of our ways: He who repents of his sins is almost innocent.

When thou hast profited so much that thou respectest even thyself, thou mayst let go thy tutor.

Refrain from following the example of those whose craving is for attention, not their own improvement.

The world itself is too small for the covetous.