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We don't inherit the earth from our ancestors; we borrow it from our children—this belief shapes everything we do.
Our legacy will be defined by how we treat the forests today.
The problem is not that there are problems. The problem is expecting otherwise and thinking that having problems is a problem.
Logic is the foundation of all mathematical reasoning.
Do you not see how necessary a world of pains and troubles is to school an intelligence and make it a soul?
"The true measure of success is how you handle failure."