This song was first released on the all aboard! album. it is the only album it has been released on.

there was a little railroad train with loads and loads of toys
all starting out to find a home with little girls and boys
and as that little railroad train began to chug along
the little engine up in front was heard to sing this song
choo, choo, choo, choo
choo, choo, choo, choo
i feel so good today
oh hear the track
oh clickety clack
iĄŻll go my merry way

the little train went rousing on so fast it seemed to fly
until it reached a mountain that went almost to the sky
the little engine moaned and groaned and huffed and puffed away
but halfway to the top it just gave up and seemed to say
i canĄŻt go
i canĄŻt go
iĄŻm weary as can be
i canĄŻt go
i canĄŻt go
this job is not for me

the toys got out to push but all in vain alas alack
and then a great big engine came a whistling down the track
they asked if it would kindly pull them up the mountain side
but with a high and mighty sneer it scornfully replied i
donĄŻt bother me
donĄŻt bother me
to pull the likes of you
donĄŻt bother me
donĄŻt bother me
iĄŻve better things to do

the toys all started crying ĄŻcause that engine was so mean
and then there came another one, the smallest ever seen
and though it seemed that she could hardly pull herself along
she hitched on to the train and as she pulled she sang this song
i think i can
i think i can
i think i have a plan
and i can do most anything
if i only think i can

then up that great big mountain with the cars all full of toys
and soon they reached the waiting arms of little girls and boy
and though that ends the story it will do you lots of good
to take a lesson from the little engine that could
just think you can
just think you can
just have that understood
and very soon youĄŻll start to say
i always knew i could
i knew i could
i knew i could
i knew i could
i knew i could
i knew i could
i knew i could, yeah!

words and music by william may and warren foster