Arthur Schopenhauer said this quote

What disturbs and depresses young people is the hunt for happiness on the firm assumption that it must be met with in life. From this arises constantly deluded hope and so also dissatisfaction. Deceptive images of a vague happiness hover before us in our dreams, and we search in vain for their original. Much would have been gained if, through timely advice and instruction, young people could have had eradicated from their minds the erroneous notion that the world has a great deal to offer them.

~ Arthur Schopenhauer

If children were brought into the world by an act of pure reason alone, would the human race continue to exist? Would not a man rather have so much sympathy with the coming generation as to spare it the burden of existence, or at any rate not take it upon himself to impose that burden upon it in cold blood?

~ Arthur Schopenhauer

Talent hits a target no one else can hit. Genius hits a target no one else can see.

~ Arthur Schopenhauer

The person who writes for fools is always sure of a large audience.

~ Arthur Schopenhauer