Schopenhauer had significant influence on a number of individuals including Frederick Nietzsche and Ludwig Wittgenstein
Nietzsche expressed an admiration for Schopenhauer. According to Nietzsche, Schopenhauer reflected a man not content with superficiality but on the contrary was willing to stare boldly into the face of the ultimate significance of life.
Nietzsche found in Schopenhauer a sauce of inspiration and he saw him as a man of great independence of character.
However, Nietzsche criticized Schopenhauer for his turning away from life and Nietzsche responded to the contrary advocating that rather than turning away from life or seeking escape from life in all of its brutality and challenge, the individual should embrace life with a "Yes."
Whereas Schopenhauer called for the individual to abandon life and the life principle, Nietzsche called upon the individual to transform life's challenges.
Wittgenstein was the last of the great thinkers influenced by Schopenhauer.
In Wittgenstein's Tractatus there is a correlation between the subject and the world which is Wittgenstein admired Schopenhauer for his willingness to face the ultimacy of life and Wittgenstein stated that if all of the questions of science were answered and the problems of science were solved, the problems of life would still remain untouched.
This comes from Schopenhauer.
It is also significant that in the Tractatus Wittgenstein points to the Will as the bearer of ethics.
