Lyrics: Lea Salonga. Other. Lesson Number One.

Earth, Sky?
Day, Night!
Sound and Silence
Dark and Light

One, alone is not enough
You need both together
Winter, Summer
Moon and Sun
Lesson Number One

Like a Rock, huh huh
You must be hard, huh huh
Like an oak, mmmah
You must be stand firm, huh huh
Cut quick (whoosh), like my blade
Think fast, huh huh
Unafraid

Like a Rock, huh huh
I must be hard, huh huh
Like an oak, mmmah
I must be stand firm, huh huh
Cut quick (whoosh), like my blade
Think fast, huh huh
Unafraid

Like a cloud
You are soft
Like bamboo
You'll bend in the wind
Creeping slow
You're at peace because you know
It's ok to be afraid

Like a cloud
I am soft
Like bamboo
I'll bend in the wind
Creeping slow
I'm at peace because I know
It's ok to be afraid

One, alone is not enough (One, alone is not enough)
We need both together (We need both together)
Winter, Summer, Moon and Sun (Winter, Summer, Moon and Sun)
Lesson Number One

Like a cloud (Like a Rock, huh huh)
You are soft (I must be hard huh huh)
Like bamboo (Like an oak, mmmah)
You'll bend in the wind (I must be stand firm, huh huh)
Creeping slow (Cut quick (whoosh), like my blade)
You're at peace because you know (Think fast, huh huh)

You have began

Lesson Number One (Lesson Number One)
Lesson Number One (Lesson Number One)
Lesson Number One (Lesson Number One)

(Thanks to Len_yoBi for these lyrics)