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Nothing in life is to be feared, it is only to be understood. Now is the time to understand more, so that we may fear less.

My past doesn't define me.

The love of a teacher is like drops of dew, which can revive even a withered soul; the love of a teacher is like a warm spring breeze, which can melt even frozen emotions.

如果沒有君主，人們各自可以自私自利。

樂觀不僅僅是一種特質(zhì)；它是一種可以培養(yǎng)的技能。

The pursuit of science is more than the pursuit of understanding. It is the pursuit of wonder.

The world is a place of the living, and the dead have no place in it. The dead are nothing. They are not even a memory. They are forgotten.