Clearly, Goldman was not just passively investing in a basket of green stocks, as PBW does.

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It will be another major device people INTERACT with, not just passively consume as they do now.

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Interactive play is not the same as passively watching TV.

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Learning, however, is not simply a matter of passively sitting and absorbing information.

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While not long ago the public passively listened to messages dictated to them via TV and radio, citizens now generate their own about important causes and are eager to share them.

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"I do not believe that Davis was just a reluctant follower who passively went along with the violence, " he said.

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Active ETFs seem not to justify their existence as tools that aim at enabling investors to access returns superior to that of investing in passively managed instruments at lower cost.

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