Although the computer has many advantages, the public library has other benefits which can't be ignored.
Thank you, rosborne979. I think your sentence is nice, but how can I express my firm opinion, like the word "by no means", that the public library cannot be ignored.
If you want to add emphasis to your argument, then you could say, "Although the computer has many advantages, the public library definitely has other benefits which can't be ignored.
Or you could say, "Although the computer has many advantages, the public library has other benefits which can by no means be ignored.
However, in general, I feel that the fewer words you can use to express a clear idea the better. Also, the phrase "by no means" is a negative statement which requires you to invert the basic premise of the conclusion. While switches like this are not incorrect, they are sometimes verbally confusing.
Yoda (a fictional Star Wars Character) would say it this way: "Many advantages have computers, but benefits, the public library definitely has as well.
". While this phrasing is not incorrect, it is an unusual reversal of the standard presentation, and is probably best left to creative writing rather than day to day conversation