Something may look valuable, but may not really be valuable.

VOA: special.2009.08.30

You'd have four times as many companies but you might not have four times as much valuable innovation.

有的只是四倍数量的公司，但是,你能够有的有价值的创新想法却远远不够。

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选

So an introduction is not only valuable for those of us who simply wish to acquire knowledge.

所以入门课不仅对那些,想获取知识的人很有价值。

耶鲁公开课 - 文学理论导论课程节选

Goats are valuable not just for their milk and meat, or for their ability to control weeds and help renew grasslands, or even for their ability to be gentle around children.

VOA: special.2010.09.07

After all, not every bit of knowledge is equally valuable.

毕竟，并非所有知识都价值相等。

耶鲁公开课 - 死亡课程节选

"Supporters of Iran or affiliates such as Hezbollah or Hamas, they quickly have picked up on the signal that Iranian influence is perhaps not as valuable as Turkish influence."

VOA: standard.2010.07.26