His comments came just days after a speech by the commander of the elite Revolutionary Guards, who said the accord, which lifted international sanctions on Iran, amounted to a humiliation.
Rouhani, a moderate cleric under Iran's theocratic system, was boosted in February elections when his allies made gains in parliament and their conservative rivals lost dozens of seats.
However, the polls have been followed by gestures from hardliners within the regime that appear aimed at preventing the nuclear agreement leading to any wider rapprochement.
The tests, however, do not amount to an infringement of the July nuclear accord as it did not cover ballistic missiles.
Rouhani, in a speech broadcast live from Tehran, said the nuclear deal, finally implemented in January after more than two years of talks, showed "logic and argument can triumph over hard power and threats."
"Under radical thinking, there should never be cooperation with the IAEA or the United Nations," Rouhani said, referring to the International Atomic Energy Agency responsible for monitoring the deal.
"Being radical is disadvantageous to us everywhere. It creates the biggest danger for any society."
The Guards report not to Rouhani but to supreme leader Ayatollah Ali Khamenei, Iran's ultimate authority.
The force's commander, Major General Mohammad Ali Jafari, said on Tuesday that the nuclear deal should not be seen as a model for rapprochement.
If it is "portrayed as a model, that is a sign of narrow mindedness and self-humiliation," Jafari told fellow commanders.
Rouhani has praised the accord, which defused a 13-year showdown with the West, as an example to be followed for forging "understanding and reconciliation" at home.
You’ve reached your limit of {{free_limit}} free articles this month.
Subscribe now for unlimited access.
Already subscribed? Log in
Subscribe to read the full story →
Smart Quarterly
₹900
3 Months
₹300/Month
Smart Essential
₹2,700
1 Year
₹225/Month
Super Saver
₹3,900
2 Years
₹162/Month
Renews automatically, cancel anytime
Here’s what’s included in our digital subscription plans
Exclusive premium stories online
Over 30 premium stories daily, handpicked by our editors


Complimentary Access to The New York Times
News, Games, Cooking, Audio, Wirecutter & The Athletic
Business Standard Epaper
Digital replica of our daily newspaper — with options to read, save, and share


Curated Newsletters
Insights on markets, finance, politics, tech, and more delivered to your inbox
Market Analysis & Investment Insights
In-depth market analysis & insights with access to The Smart Investor


Archives
Repository of articles and publications dating back to 1997
Ad-free Reading
Uninterrupted reading experience with no advertisements


Seamless Access Across All Devices
Access Business Standard across devices — mobile, tablet, or PC, via web or app
