目(もく)的(てき) mokutekiを o遂(と)げ()る() togeruという toiuこと kotoは wa難(むずか)し()い() muzukashiiと toいう iuこと kotoが gaわかった wakatta。 I found out that accomplishing one's goal is a difficult thing. Literal Goal [obj-を] accomplish [quotative-という] thing [topic-は] difficult [quotative-という] thing [subj-が] was-understood. 遂げる ('accomplish, carry through') is a literary/formal verb. The sentence stacks two ということ frames — 目的を遂げるということは (the fact of accomplishing) and 難しいということがわかった (understood that it's difficult). Somewhat clunky with the repetition. dreamsambitionnominalizer こと~ということだ (it means that)
目(もく)的(てき) mokutekiを o遂(と)げ()る() togeruという toiuこと kotoは wa難(むずか)し()い() muzukashiiと toいう iuこと kotoが gaわかった wakatta。 I found out that accomplishing one's goal is a difficult thing. Literal Goal [obj-を] accomplish [quotative-という] thing [topic-は] difficult [quotative-という] thing [subj-が] was-understood. 遂げる ('accomplish, carry through') is a literary/formal verb. The sentence stacks two ということ frames — 目的を遂げるということは (the fact of accomplishing) and 難しいということがわかった (understood that it's difficult). Somewhat clunky with the repetition. dreamsambitionnominalizer こと~ということだ (it means that)