diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
new file mode 100644
index 0000000..da5f0ae
--- /dev/null
+++ b/.github/workflows/build.yml
@@ -0,0 +1,21 @@
+on: [push]
+
+name: CI
+
+jobs:
+  build_and_test:
+    name: Daisy
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions-rs/toolchain@v1
+        with:
+          toolchain: stable
+      - uses: actions-rs/cargo@v1
+        with:
+          command: build
+          args: --release --all-features
+      - uses: actions-rs/cargo@v1
+        with:
+          command: test
+          args: --release
\ No newline at end of file
diff --git a/src/entry/unix/unix.rs b/src/entry/unix/unix.rs
index 56a8ead..c2ea378 100644
--- a/src/entry/unix/unix.rs
+++ b/src/entry/unix/unix.rs
@@ -81,7 +81,7 @@ pub fn main() -> Result<(), std::io::Error> {
 							Ok(g) => {
 								#[cfg(debug_assertions)]
 								RawTerminal::suspend_raw_mode(&stdout)?;
-								let out_str = g.print();
+								let out_str = g.to_string();
 								let g = evaluate::evaluate(g);
 								#[cfg(debug_assertions)]
 								RawTerminal::activate_raw_mode(&stdout)?;
@@ -100,7 +100,7 @@ pub fn main() -> Result<(), std::io::Error> {
 											style::Bold,
 											color::Fg(color::Green),
 											style::Reset,
-											q.print(),
+											q.to_string_outer(),
 											color::Fg(color::Reset)
 										)?;
 									},
diff --git a/src/quantity/quantity.rs b/src/quantity/quantity.rs
index a4e0f14..dfff1b4 100644
--- a/src/quantity/quantity.rs
+++ b/src/quantity/quantity.rs
@@ -36,6 +36,16 @@ impl ToString for Quantity {
 }
 
 impl Quantity {
+	pub fn to_string_outer(&self) -> String {
+		let n = self.v.to_string();
+		if self.unitless() { return n; }
+
+		let u = self.u.to_string();
+		return format!("{n} {u}");
+	}
+
+
+
 	pub fn new_float(f: f64) -> Option<Quantity> {
 		let v = Scalar::new_float(f);
 		if v.is_none() { return None; }
diff --git a/src/tests.rs b/src/tests.rs
index a7787db..aa0eaa1 100644
--- a/src/tests.rs
+++ b/src/tests.rs
@@ -10,7 +10,7 @@ fn eval_to_str(s: &str) -> Result<String, ()> {
 	//let out_str = g.print();
 
 	return match evaluate::evaluate(g) {
-		Ok(x) => Ok(x.print()),
+		Ok(x) => Ok(x.to_string()),
 		Err(_) => Err(())
 	};
 }
diff --git a/src/tokens/mod.rs b/src/tokens/mod.rs
index 12cdb3c..baad63f 100644
--- a/src/tokens/mod.rs
+++ b/src/tokens/mod.rs
@@ -26,15 +26,28 @@ pub enum Token {
 	),
 }
 
-impl Token {
-
-	pub fn print(&self) -> String {
+impl ToString for Token {
+	fn to_string(&self) -> String {
 		match self {
 			Token::Number(v) => v.to_string(),
-			Token::Constant(_,s) => s.clone(),
+			Token::Constant(_, s) => s.clone(),
 			Token::Operator(o,a) => o.print(a)
 		}
 	}
+}
+
+impl Token {
+
+	// This is called only when this is the outermost token.
+	// This sometimes leads to different--usually more verbose--behavior.
+	pub fn to_string_outer(&self) -> String {
+		match self {
+			Token::Number(v) => v.to_string_outer(),
+			Token::Constant(_, s) => s.clone(),
+			Token::Operator(o,a) => o.print(a)
+		}
+	}
+
 
 	#[inline(always)]
 	pub fn get_args(&self) -> Option<&VecDeque<Token>> {
diff --git a/src/tokens/operator.rs b/src/tokens/operator.rs
index fca87e7..2053691 100644
--- a/src/tokens/operator.rs
+++ b/src/tokens/operator.rs
@@ -54,7 +54,7 @@ impl Operator {
 
 	#[inline(always)]
 	fn add_parens_to_arg(&self, arg: &Token) -> String {
-		let mut astr: String = arg.print();
+		let mut astr: String = arg.to_string();
 		if let Token::Operator(o,_) = arg {
 			if o < self {
 				astr = format!("({})", astr);
@@ -65,7 +65,7 @@ impl Operator {
 
 	#[inline(always)]
 	fn add_parens_to_arg_strict(&self, arg: &Token) -> String {
-		let mut astr: String = arg.print();
+		let mut astr: String = arg.to_string();
 		if let Token::Operator(o,_) = arg {
 			if o <= self {
 				astr = format!("({})", astr);
@@ -193,7 +193,7 @@ impl Operator {
 			},
 
 			Operator::Function(s) => {
-				return format!("{}({})", s.to_string(), args[0].print());
+				return format!("{}({})", s.to_string(), args[0].to_string());
 			}
 		};
 	}