Don't judge anyone harshly until you yourself have been through his experiences

The flowers of life are but visionary. How many pass away and leave no trace behind! How few yield any fruit,--and the fruit itself, how rarely does it ripen! And yet there are flowers enough; and is it not strange, my friend, that we should suffer the little that does really ripen to rot, decay, and perish unenjoyed?

The really unhappy person is the one who leaves undone what they can do, and starts doing what they don't understand; no wonder they come to grief.

Where a man has a passion for meditating without the capacity of thinking, a particular idea fixes itself fast, and soon creates a mental disease.

Nature has neither kernel Nor shell

First and last, what is demanded of genius is love of truth.

People who think honestly and deeply have a hostile attitude towards the public.