The truth of things is the chief nutriment of superior
The noblest pleasure is the joy of
All our knowledge has its origins in our perceptions.
Knowledge of the past and of
the places of the
earth is the ornament and food of the mind of man.
Just as food eaten without appetite is a tedious nourishment, so
does study without zeal damage the
memory by not assimilating what
Learning never exhausts the mind.
For once you have tasted flight you will walk the earth with
your eyes turned skywards, for there you have been and there you
will long to return.
Every now and then go away, have a
little relaxation, for when you come back to your work your judgment
will be surer; since to remain constantly at work will cause you to
lose your power of judgment. Go some distance away because the work
appears smaller and more of it can be taken in at a glance, and a
lack of harmony or proportion is more readily seen.
Where there is shouting, there is no true knowledge.
Science is the captain, and practice the soldiers.
the ultimate sophistication.
While I thought that I was learning how to live, I have been
learning how to die.
Nature is the source of all true
knowledge. She has her own logic, her own laws, she has no
effect without cause nor invention without necessity.
Human subtlety will never devise an invention more beautiful,
more simple or more direct than does nature because in her
inventions nothing is lacking, and nothing is superfluous.
Necessity is the mistress and guide of nature. Necessity is the
theme and inventress of nature, her curb and her eternal law.
Water is the driving force of all nature.
Nature never breaks her own laws.