Failing isn't bad when you learn what not to do.
The most difficult part about understanding something is that we understand it all.
The life of the individual has meaning only insofar as it aids in making the life of every living thing nobler and more beautiful. Life is sacred, that is to say, it is the supreme value, to which all other values are subordinate.
Knowledge of what is does not open the door directly to what should be.
The most precious things in life are not those you get for money.
When the number of factors coming into play in a phenomenological complex is too large scientific method in most cases fails. One need only think of the weather, in which case the prediction even for a few days ahead is impossible.