Conversation so far:
What were Gottfried Wilhelm Leibniz's ideas about?
As a representative of the seventeenth-century tradition of rationalism, Leibniz's most prominent accomplishment was conceiving the ideas of differential and integral calculus, independently of Isaac Newton's contemporaneous developments.
Was Gottfried Wilhelm Leibniz spiritual or religious?
In philosophy, Leibniz is most noted for his optimism, i.e. that our universe is, the best possible one that God could have created
Did others agree with Gottfried Wilhelm Leibniz?
idea was often lampooned by others such as Voltaire.
Was Gottfried Wilhelm Leibniz optimistic because of his beliefs and that he saw a purpose in things such as religion and philosophy?
Leibniz asserted that the truths of theology (religion) and philosophy cannot contradict each other, since reason and faith are both gifts of God“
What does Gottfried Wilhelm Leibniz believe God caused evil?
The answer to Leibniz is that, while God is indeed unlimited in wisdom and power, his human creations, as creations, are limited both in their wisdom and in their will.
What do people get from God is indeed unlimited in wisdom and power and human creations are limited both in their wisdom and in their will according to Gottfried Wilhelm Leibniz?
This predisposes humans to false beliefs, wrong decisions and ineffective actions in the exercise of their free will.
What did Gottfried Wilhelm Leibniz think we gained from our actions already being known to God?
God permits both sin and pain and suffering as the necessary consequences of imperfection by which humans can identify and correct their erroneous decision to true good.

Question: What other views did he espouse?
Self-contained rewrite: What other views did Gottfried Wilhelm Leibniz espouse besides God, evil, sin and pain?