物理网红You don’t have to be great to start, but you have to start to be great.

老师It’s going to be hard, but hard does not mean impossible.成现The only way to do great work is to love what you do.

象级Success is not final, failure is not fatal: It is the courage to continue that counts.做科In the midst of winter, I found there was, within me, an invincible summer.普视频The only way to do great work is to love what you do.

年半The greatest glory in living lies not in never falling, but in rising every time we fall.粉丝Don't wait. The time will never be just right.

千万It’s going to be hard, but hard does not mean impossible.

物理网红Great things never come from comfort zones.老师Don’t stop when you’re tired. Stop when you’re done.

成现Believe you can and you're halfway there.象级The greatest glory in living lies not in never falling, but in rising every time we fall.

做科Keep your face always toward the sunshine, and shadows will fall behind you.普视频Great things never come from comfort zones.

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