He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.

The future is an opaque mirror. Anyone who tries to look into it sees nothing but the dim outlines of an old and worried face.

Success is not about seeking constant external approval; it's about staying true to yourself and your values, regardless of others' opinions.

Science may have found a cure for most evils, but it has found no remedy for the worst of them all: the apathy of human beings.

Promises are the uniquely human way of ordering the future, making it predictable and reliable to the extent that this is humanly possible.

Turn your wounds into wisdom.

Simplicity, patience, compassion. These three are your greatest treasures.