I'm wondering about the difference between 〜ようにする vs 〜ようと思う, which both
express intention. Here's an example sentence from A Dictionary of Basic
Japanese Grammar (pg 562).

> 私は毎日運動するようにする。
>
> I'll make sure that I do exercises everyday.

Changing this to the volitional form 〜ようと思う, and my best translation:

> 私は毎日運動しようと思う。
>
> I think I will exercise everyday.

Do the English translations capture the nuance in both sentences (the former
seems to express a higher level of intention)? If not, what is the difference?
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2018-01-13T22:27:57.150
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grammar volitional-form
〜ようにする vs 〜ようと思う
毎日運動する、毎日運動しなければ、毎日運動するつもりである、etc. would be showing clear intent to exercise
more.

毎日運動するようにする is kind of wishy-washy. I'm gonna try to do some exercise
(although I really don't really have that much passion for it). It is not
'make sure that'

I think your translation for 毎日運動しようと思う would be fine. I think, though, that
it would be more common to say 毎日運動しようと思っています。 'I'm thinking about (planning
on) exercising everyday.'

[Please read here](https://oshiete.goo.ne.jp/qa/1799547.html)
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2018-01-13T23:37:10.040
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I think the key difference between two versions is that the former is passive
and somewhat more apologetic and the latter is more proactive.

For example, if a doctor tells you to exercise regularly, you'd tell him
`毎日運動するようにします`. If a mother scolds you that your report card was horrible,
you'd say `毎日勉強するようにするから`

`私は毎日運動しようと思う` has a feel that you planned it, and you are initiating that
change. It feels more positive.

In both cases, I think your translation is spot on.
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