LIBRA (Sep. 23-Oct. 22): In 2010, Edurne Pasaban became the first woman to climb the world's tallest 14 mountains, reaching the top of Shishapangma in China. In 2018, Taylor Demonbreun arrived in Toronto, Canada, completing a quest in which she visited every sovereign nation on the planet in 18 months. In 1924, explorer Alexandra David-Néel pulled off the seemingly impossible feat of visiting Lhasa, Tibet, when that place was still forbidden to foreigners. Be inspired by these heroes as you ruminate about what frontier adventures you will dare to enjoy during the next six months. Design a plan to get all the educational and experimental fun you need. SCORPIO (Oct. 23-Nov. 21): Alnwick Garden is an unusual network of formal gardens in northeast England. Among its many entertaining features is the Poison Garden, which hosts 100 species of toxic and harmful plants such as hemlock, strychnine and deadly nightshade. It's the most popular feature by far. Visitors enjoy finding out and investigating what's not good for them. In accordance with astrological omens, Scorpio, I invite you to use this as an inspirational metaphor as you take inventory of influences that are not good for you. Every now and then, it's healthy to acknowledge what you don't need and shouldn't engage with. SAGITTARIUS (Nov. 22-Dec. 21): Sagittarian Tom Rath is an inspirational author who at age 49 has managed to stay alive even though he has wrangled with a rare disease since he was 16. He writes, "This is what I believe we should all aim for: to make contributions to others' lives that will grow infinitely in our absence. A great commonality we all share is that we only have today to invest in what could outlive us." That's always good advice for everyone, but it's especially rich counsel for you Sagittarians in the coming months. I believe you will have a special capacity to dispense your best gifts to those who need and want them. CAPRICORN (Dec. 22-Jan. 19): Capricorn writer Susan Sontag was a public intellectual. She was an academic with a scholarly focus and an entertaining commentator on the gritty hubbub of popular culture. One of my favorite quotes by her is this one: "I like to feel dumb. That's how I know there's more in the world than me." In other words, she made sure her curiosity and open-mindedness flourished by always assuming she had…