The right tool.
“The right tool, learned deeply, used when appropriate, no matter how basic, can beat the pants off of “features” any day. Because it isn’t about the tool, or the feature, it is about your ability to use it to achieve the goal at hand. The better you know the tools you have, the less likely you are to seek out replacements for them.”
This can apply not only to practical tools, such as our computer, and axe, or a cup. It can also apply to more esoteric tools, such as our spiritual practice, how we meditate, or practice our yoga.