Bismarck

Otto Eduard Leopold von Bismarck (German: Otto Eduard Leopold von Bismarck; April 1, 1815-July 3, 1898), [1]? The first Prime Minister of the German Empire (1871-189), known as "Iron-blooded Prime Minister" (German: Eiserner Kanzler；; "Iron" refers to weapons, "blood" refers to war), "German architect" and "German navigator". (Baidu Encyclopedia)

Source

Failure is the final test of perseverance. Truth is only within the range of artillery. There is no such thing as failure for indomitable people.

? -Bismarck's Speech on Iron Blood

3. Meaning

Only those who can stand the test of failure and face it directly can be called persevering people.