So does anyone know the sanskrit translation to this quote?

Yesterday is but a dream, tomorrow but a vision. But today well lived makes every yesterday a dream of happiness, and every tomorrow a vision of hope. Look well, therefore, to this day.

I seem to have had some reasonably good success using the following site. Sanskrit Dictionary for Spoken Sanskrit I do wish that we had a designated expert here in translating words into Sanskrit. However, every once in awhile someone does show up who really knows their stuff about translating written words from other languages into the written Sanskrit. Hopefully, someone like that will come along and notice your post.

You may have to try the site above in the different ways that are available and maybe also try some things that is suggested on it in order for you to be successful.

There is also another site that you could try. It would be the following one. Free Online Translations to Sanskrit, Hindi & Marathi for Tattoos, Names & Sentences

I think that the guy that runs it is the same one that comes around here, now and then, to answer very finely concerning questions like the one that you have.